Metabolism Quiz

Which interaction is most responsible for tertiary structure stability in proteins?

• Ionic

• Covalent

• Hydrophobic

• Hydrogen

Which of the following biomolecules can function both as enzymes and structural components?

• Carbohydrates

• Proteins

• Lipids

• Nucleic acids

The experimental elucidation of glycolysis was done by:

• Sanger

• Warburg

• Embden-Meyerhof

• Krebs

An amphibolic pathway that links catabolism and anabolism is:

• Glycolysis

• Gluconeogenesis

• Citric acid cycle

• β-oxidation

The primary function of oxidative phosphorylation is to:

• Generate NADH

• Hydrolyze glucose

• Synthesize ATP

• Produce lactate

Which electron carrier enters the electron transport chain at Complex II?

• NADH

• FADH2

• FMN

• CoQ

Standard free energy change (ΔG°') becomes zero when:

• Reaction is at equilibrium

• Reactants are in excess

• Products dominate

• Temperature decreases

Redox potential of a compound indicates its ability to:

• Lose heat

• Gain electrons

• Release CO₂

• Hydrolyze ATP

ATP hydrolysis to ADP and Pi releases approximately:

• –2.3 kcal/mol

• –4.6 kcal/mol

• –7.3 kcal/mol

• –12.5 kcal/mol

Among high-energy phosphate compounds, the highest standard free energy is in:

• ATP

• Creatine phosphate

• PEP

• Glucose-6-P