Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Metabolism refers to:
A. Only energy production
B. All chemical reactions in the body
C. Protein synthesis only
D. DNA replication
Correct Answer: B
Rationale: Includes both building (anabolism) and breaking down
(catabolism) reactions.
2. Catabolism involves:
A. Building complex molecules
B. Breaking down molecules to release energy
C. DNA replication
D. Protein folding
Correct Answer: B
,Rationale: Releases energy by breaking complex molecules into
simpler ones.
3. Anabolism involves:
A. Breaking down molecules
B. Building complex molecules
C. ATP breakdown
D. Digestion
Correct Answer: B
Rationale: Requires energy to build larger molecules.
4. ATP is:
A. A protein
B. The main energy currency of the cell
C. A lipid
D. DNA
Correct Answer: B
Rationale: Provides energy for cellular processes.
5. ATP releases energy when:
A. A phosphate group is removed
B. It gains a phosphate
C. It binds glucose
D. DNA replicates
,Correct Answer: A
Rationale: ATP → ADP + Pi releases usable energy.
6. Enzymes are:
A. Lipids
B. Biological catalysts
C. DNA molecules
D. Sugars
Correct Answer: B
Rationale: Speed up chemical reactions without being consumed.
7. Enzymes lower:
A. Temperature
B. Activation energy
C. Energy production
D. pH
Correct Answer: B
Rationale: Allows reactions to occur faster.
8. The active site is:
A. Where enzyme binds substrate
B. Where DNA replicates
C. Ribosome location
D. ATP storage
, Correct Answer: A
Rationale: Specific region where substrate fits.
9. Substrate is:
A. Product of reaction
B. Reactant enzyme acts on
C. Enzyme
D. DNA
Correct Answer: B
Rationale: Converted into product during reaction.
10. Enzyme specificity is due to:
A. Shape of active site
B. Temperature only
C. pH only
D. ATP
Correct Answer: A
Rationale: Only specific substrates fit the active site.
11. Denaturation of enzymes occurs when:
A. Shape changes
B. ATP increases
C. DNA replicates
D. Substrate binds