## DESCRIPTION
## Select the polysaccharide that corresponds to the given description.
## ENDDESCRIPTION
## KEYWORDS('polysaccharides','descriptions','which one','multiple choice')
## DBsubject('Biochemistry')
## DBchapter('')
## DBsection('')
## Date('2026-07-12')
## Author('Neil R. Voss')
## Institution('Roosevelt University')
DOCUMENT();
loadMacros(
'PGstandard.pl',
'PGML.pl',
'PGchoicemacros.pl',
'parserRadioButtons.pl',
'PGcourse.pl',
);
TEXT(beginproblem());
$showPartialCorrectAnswers = 0;
#==========================================================
# QUESTION DATA
#==========================================================
# All questions data
@questions_data = (
{
'item_name' => 'storage form of glucose in animals',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'glycogen',
},
{
'item_name' => 'animalpolysaccharide that contains α-glycosidic linkages',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'glycogen',
},
{
'item_name' => 'animalmolecule composed of linear chains of α-(1,4) D-glucose residues connected through α-(1,6) linkages',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'glycogen',
},
{
'item_name' => 'glucose storage found in skeleton muscle and liver cells',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'glycogen',
},
{
'item_name' => 'highly branched polymer of α-linked glucose units found in animals',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'glycogen',
},
{
'item_name' => 'highly branched energy storage in animals',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'glycogen',
},
{
'item_name' => 'branched storage form of glucose in plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylopectin',
},
{
'item_name' => 'highly branched polymer of α-linked glucose units found in plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylopectin',
},
{
'item_name' => 'highly branched glucose polymer found in plants that is readily digested by humans and other mammals',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylopectin',
},
{
'item_name' => 'plantmolecule composed of linear chains of α-(1,4) D-glucose residues connected through α-(1,6) linkages',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylopectin',
},
{
'item_name' => 'moderately branched energy storage in plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylopectin',
},
{
'item_name' => 'unbranched storage form of glucose in plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylose',
},
{
'item_name' => 'unbranched energy storage in plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylose',
},
{
'item_name' => 'linear chain of glucose with α-glycosidic linkages and no branches',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylose',
},
{
'item_name' => 'also know as resistant starch, because it has no branches and it is resistant to digestion',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'amylose',
},
{
'item_name' => 'structural form of glucose in some animals',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'chitin',
},
{
'item_name' => 'animalpolysaccharide that contains β-glycosidic linkages',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'chitin',
},
{
'item_name' => 'major structural component of arthopod (e.g., insects) exoskeletons',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'chitin',
},
{
'item_name' => 'polymer of β-linked glucose units found in some animals',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'chitin',
},
{
'item_name' => 'carbohydrate polymer that used for structural purposes by some animals',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'chitin',
},
{
'item_name' => 'structural material in arthropods and fungi',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'chitin',
},
{
'item_name' => 'structural form of glucose in plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'cellulose',
},
{
'item_name' => 'major structural component of cell walls',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'cellulose',
},
{
'item_name' => 'plantpolysaccharide that contains β-glycosidic linkages',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'cellulose',
},
{
'item_name' => 'polymer of β-linked glucose units found in plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'cellulose',
},
{
'item_name' => 'carbohydrate polymer that used for structural purposes by plants',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'cellulose',
},
{
'item_name' => 'structural material in plantcell walls',
'plural_choice' => 'polysaccharides',
'singular_item' => 'description',
'choices' => [
'glycogen',
'amylopectin',
'amylose',
'chitin',
'cellulose',
],
'correct' => 'cellulose',
},
);
#==========================================================
# SELECT RANDOM QUESTION
#==========================================================
my $local_random = PGrandom->new();
$local_random->srand($problemSeed);
$question_idx = $local_random->random(0, scalar(@questions_data) - 1, 1);
$q = $questions_data[$question_idx];
$item_name = $q->{'item_name'};
$plural_choice = $q->{'plural_choice'};
$singular_item = $q->{'singular_item'};
@choices = @{ $q->{'choices'} };
$correct = $q->{'correct'};
#==========================================================
# SHUFFLE CHOICES (SEED-STABLE)
#==========================================================
my @choice_indices = (0 .. $#choices);
my @choice_shuffled = ();
while (@choice_indices) {
my $pick = $local_random->random(0, $#choice_indices, 1);
push @choice_shuffled, splice(@choice_indices, $pick, 1);
}
@choices = @choices[@choice_shuffled];
#==========================================================
# BUILD RADIO BUTTONS
#==========================================================
$rb = RadioButtons(
[@choices],
$correct,
labels => 'ABC',
displayLabels => 1,
randomize => 0,
separator => '',
);
#==========================================================
# PGML
#==========================================================
BEGIN_PGML
Which one of the following [$plural_choice]* corresponds to the [$singular_item]* [$item_name]*?
[_]{$rb}
END_PGML
BEGIN_PGML_SOLUTION
The correct answer is: [$correct]*
END_PGML_SOLUTION
ENDDOCUMENT();