MC

9608_345d

D-gulose⟶L-gulose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-gulose. Which one of the following Fischer projections is of the monosaccharide L-gulose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct MC

b81e_4ecb

D-talo-2-heptulose⟶L-talo-2-heptulose

. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-talo-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-talo-2-heptulose?

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

560f_18fe

D-3-keto-allose⟶L-3-keto-allose

. . CH2OH
H . . . . OH
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-3-keto-allose. Which one of the following Fischer projections is of the monosaccharide L-3-keto-allose?

. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

e8ab_2809

D-glycero-D-gulo-heptose⟶L-glycero-L-gulo-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-gulo-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-gulo-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

2ada_cb05

D-mann-2-heptulose⟶L-mann-2-heptulose

. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-mann-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-mann-2-heptulose?

. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

e17a_bbff

D-glycero-D-altro-heptose⟶L-glycero-L-altro-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-altro-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-altro-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

8dfe_20f1

D-glycero-L-galacto-heptose⟶L-glycero-L-galacto-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-galacto-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-galacto-heptose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

90e4_2e20

D-allo-2-heptulose⟶L-allo-2-heptulose

. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-allo-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-allo-2-heptulose?

. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

b0bf_3d71

D-3-keto-altrose⟶L-3-keto-altrose

. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-3-keto-altrose. Which one of the following Fischer projections is of the monosaccharide L-3-keto-altrose?

. . CH2OH
H . . . . OH
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

9a11_7909

D-ido-2-heptulose⟶L-ido-2-heptulose

. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-ido-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-ido-2-heptulose?

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

e3d4_cfdb

D-glycero-L-gulo-heptose⟶L-glycero-L-gulo-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-gulo-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-gulo-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

d762_971a

D-glycero-D-galacto-heptose⟶L-glycero-L-galacto-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-galacto-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-galacto-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

69af_1797

D-psicose⟶L-psicose

. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-psicose. Which one of the following Fischer projections is of the monosaccharide L-psicose?

. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

3c6f_1154

D-gulo-2-heptulose⟶L-gulo-2-heptulose

. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-gulo-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-gulo-2-heptulose?

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct MC

6139_3f4b

D-glycero-L-altro-heptose⟶L-glycero-L-altro-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-altro-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-altro-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct MC

3739_c2a4

D-glycero-L-allo-heptose⟶L-glycero-L-allo-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-allo-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-allo-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

53ad_964d

D-mannose⟶L-mannose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-mannose. Which one of the following Fischer projections is of the monosaccharide L-mannose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

fa64_3b9b

D-glycero-L-manno-heptose⟶L-glycero-L-manno-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-manno-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-manno-heptose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

7a27_57ec

D-glycero-D-manno-heptose⟶L-glycero-L-manno-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-manno-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-manno-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

3719_11ab

D-altro-2-heptulose⟶L-altro-2-heptulose

. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-altro-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-altro-2-heptulose?

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

6120_42a2

D-galacto-2-heptulose⟶L-galacto-2-heptulose

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-galacto-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-galacto-2-heptulose?

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

1e1f_121b

D-xylose⟶L-xylose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-xylose. Which one of the following Fischer projections is of the monosaccharide L-xylose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

b05b_d2df

D-3-keto-glucose⟶L-3-keto-glucose

. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-3-keto-glucose. Which one of the following Fischer projections is of the monosaccharide L-3-keto-glucose?

. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

cf6c_abc6

D-sorbose⟶L-sorbose

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-sorbose. Which one of the following Fischer projections is of the monosaccharide L-sorbose?

. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct MC

a3a4_4f51

D-talose⟶L-talose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-talose. Which one of the following Fischer projections is of the monosaccharide L-talose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

a285_1829

D-3-keto-mannose⟶L-3-keto-mannose

. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-3-keto-mannose. Which one of the following Fischer projections is of the monosaccharide L-3-keto-mannose?

. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
H . . . . OH
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

b7d0_7e27

D-ribose⟶L-ribose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-ribose. Which one of the following Fischer projections is of the monosaccharide L-ribose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

d63a_e9d6

D-glycero-L-gluco-heptose⟶L-glycero-L-gluco-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-gluco-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-gluco-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

7990_6f18

D-glycero-D-talo-heptose⟶L-glycero-L-talo-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-talo-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-talo-heptose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

8490_5acb

D-altro-3-heptulose⟶L-altro-3-heptulose

. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-altro-3-heptulose. Which one of the following Fischer projections is of the monosaccharide L-altro-3-heptulose?

. . CH2OH
H . . . . OH
. . . .
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

e922_c4ae

D-glycero-L-ido-heptose⟶L-glycero-L-ido-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-ido-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-ido-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

ab74_474d

D-glycero-D-ido-heptose⟶L-glycero-L-ido-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-ido-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-ido-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

7e73_e81d

D-lyxose⟶L-lyxose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-lyxose. Which one of the following Fischer projections is of the monosaccharide L-lyxose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

0446_cf98

D-gluco-2-heptulose⟶L-gluco-2-heptulose

. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-gluco-2-heptulose. Which one of the following Fischer projections is of the monosaccharide L-gluco-2-heptulose?

. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

72ef_1957

D-glycero-L-talo-heptose⟶L-glycero-L-talo-heptose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-L-talo-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-talo-heptose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

d1ef_f76e

D-allose⟶L-allose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-allose. Which one of the following Fischer projections is of the monosaccharide L-allose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

180d_3674

D-altrose⟶L-altrose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-altrose. Which one of the following Fischer projections is of the monosaccharide L-altrose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

c1c0_7f3e

D-arabinose⟶L-arabinose

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-arabinose. Which one of the following Fischer projections is of the monosaccharide L-arabinose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

5149_ca58

D-manno-3-heptulose⟶L-manno-3-heptulose

. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-manno-3-heptulose. Which one of the following Fischer projections is of the monosaccharide L-manno-3-heptulose?

. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
H . . . . OH
. . . .
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
H . . . . OH
. . . .
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
HO . . . . H
. . . .
. ==O 
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect MC

3c46_6f9a

D-glycero-D-allo-heptose⟶L-glycero-L-allo-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-allo-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-allo-heptose?

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct MC

a5eb_aba9

D-tagatose⟶L-tagatose

. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-tagatose. Which one of the following Fischer projections is of the monosaccharide L-tagatose?

. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
. . CH2OH
. ==O 
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect MC

5679_3faf

D-glycero-D-gluco-heptose⟶L-glycero-L-gluco-heptose

H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH

Above is a Fischer projection of the monosaccharide D-glycero-D-gluco-heptose. Which one of the following Fischer projections is of the monosaccharide L-glycero-L-gluco-heptose?

H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
HO . . . . H
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Correct
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
H . . . . OH
. . . .
. . CH2OH
Incorrect
H  .  O
. \   // .
. . C . .
H . . . . OH
. . . .
H . . . . OH
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
HO . . . . H
. . . .
. . CH2OH
Incorrect