Test Bank for Fundamentals of Biochemistry Life at the Molecular Level 5th Edition by Donald Voet, Judith G. Voet, Charlotte W. Pratt

TEST BANK




Fundamentals of Biochemistry Life at the Molecular Level 5th
Edition by Donald Voet, Judith G. Voet, Charlotte W. Pratt
BIOCHEMISTRY – PRACTICE SET (START)

(Enzyme Basics + Biomolecules)




🔹 ENZYMES
1. Enzymes increase reaction rate by:​
A. Increasing activation energy​
B. Decreasing activation energy​
C. Changing equilibrium​
D. Being consumed in reaction​

, ✔ Answer: B​
✔ Rationale: Enzymes lower activation energy without being used up.



2. A competitive inhibitor works by:​
A. Binding to allosteric site​
B. Binding to active site​
C. Destroying enzyme​
D. Increasing substrate​
✔ Answer: B



3. Noncompetitive inhibition affects:​
A. Active site only​
B. Enzyme structure at allosteric site​
C. Substrate concentration only​
D. pH only​
✔ Answer: B



4. Enzyme activity is highest at:​
A. Extreme pH​
B. Optimal temperature​
C. Freezing point​
D. No substrate​
✔ Answer: B




🔹 PROTEINS
5. Primary structure of protein refers to:​
A. Folding shape​
B. Amino acid sequence​
C. Hydrogen bonding​
D. Quaternary structure​
✔ Answer: B



6. Peptide bonds form between:​
A. Carbohydrates​