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List of Biochemistry Topics

Biochemistry is the study of chemical substances and vital processes in living organisms. Biochemists focus on the role, function, and structure of biomolecules and the chemistry behind biological processes. Questions ask students to identify molecular structures, classify biomolecules, calculate enzyme kinetics, and analyze chemical reactions like pH, pKa, and thermodynamics.

Topics

  1. Life Molecules 8 questions LibreTextsChapter 1.1

    • Students categorize biomolecules into major classes (proteins, carbohydrates, lipids, nucleic acids) and distinguish hydrophobic from hydrophilic molecules.

  2. Water and pH 14 questions LibreTextsChapter 1.2

    • Students calculate pH from pKa using the Henderson-Hasselbalch equation, predict protonation states of simple acids and bases, and analyze buffer systems.

  3. Amino Acids 13 questions LibreTextsChapter 1.3

    • Students identify amino acids by their side chains, classify R-groups by polarity and charge, predict amino acid protonation states at given pH values, and analyze peptide bond formation.

  4. Protein Structure 4 questions LibreTextsChapter 1.4

    • Students identify levels of protein structure, distinguish alpha helices from beta sheets, analyze backbone hydrogen bonding patterns, and interpret Ramachandran plots.

  5. Protein Purification 11 questions LibreTextsChapter 1.5

    • Students choose purification methods for proteins based on size, charge, and binding affinity, and interpret results from gel filtration, ion exchange, SDS-PAGE, and isoelectric focusing.

  6. Thermodynamics 10 questions LibreTextsChapter 2.1

    • Students calculate delta G and Keq, determine whether reactions are spontaneous, and interpret free energy diagrams for enzyme-catalyzed reactions.

  7. Enzyme Kinetics 4 questions LibreTextsChapter 2.2

    • Students determine Vmax and Km from substrate concentration data, interpret Michaelis-Menten and Lineweaver-Burk plots, and calculate enzyme efficiency using kcat.

  8. Enzyme Inhibition 3 questions LibreTextsChapter 2.3

    • Students classify inhibition type (competitive, noncompetitive, uncompetitive, mixed) from changes in Km and Vmax in Michaelis-Menten data, and interpret inhibitor effects on Lineweaver-Burk plots.

  9. Enzyme Allostery 5 questions LibreTextsChapter 2.4

    • Students analyze allosteric regulation, cooperativity, and sigmoidal binding curves, calculate Hill coefficients from hemoglobin oxygen binding data, and trace end-product feedback control through metabolic pathway diagrams.

  10. Carbohydrates 9 questions LibreTextsChapter 3.1

    • Students classify monosaccharides using Fischer and Haworth projections, identify anomers and epimers, and analyze glycosidic bond formation in disaccharides.

  11. Lipids 3 questions LibreTextsChapter 3.3

    • Students classify lipids by type (fatty acids, triacylglycerols, sphingolipids, steroids, waxes), identify lipid structures from molecular formulas, and distinguish saturated from unsaturated fatty acids.

  12. Sugar Metabolism 1 question

    • Students trace glucose through glycolysis to pyruvate, calculate net ATP and NADH yield, explain how fructose and galactose enter the pathway, describe NAD+ regeneration through fermentation, identify regulatory control points responsive to energy demand and hormonal signals, and contrast gluconeogenesis bypass reactions with irreversible glycolytic steps including reciprocal regulation between the two pathways.

  13. Photosynthesis 1 question

    • Students trace light energy capture through Photosystem II and Photosystem I, explain water oxidation and oxygen release, describe electron transport and proton gradient formation driving ATP synthase, trace NADPH and ATP into the Calvin cycle where Rubisco fixes CO2 into hexose phosphates, and compare C4 and CAM adaptations for improved carbon fixation efficiency.