BIO 172 UH Manoa Exam 2 Questions &
Answers Plus Rationales, Well Elaborated
| Already Verified Test |100% Verified
solutions
1. What is the main purpose of cellular respiration?
A. To create glucose
B. To produce ATP
C. To produce oxygen
D. To store energy
Answer: B
Rationale: Cellular respiration breaks down glucose to produce ATP, the cell’s energy currency.
2. Which organelle is the site of cellular respiration?
A. Chloroplast
B. Mitochondria
C. Ribosome
D. Nucleus
Answer: B
Rationale: Mitochondria are the primary site of ATP production via respiration.
3. Glycolysis occurs in the:
A. Mitochondrial matrix
B. Cytoplasm
C. Nucleus
D. Golgi apparatus
Answer: B
Rationale: Glycolysis is anaerobic and occurs in the cytoplasm.
,4. The final electron acceptor in aerobic respiration is:
A. Carbon dioxide
B. Oxygen
C. NADH
D. Glucose
Answer: B
Rationale: Oxygen accepts electrons at the end of the ETC to form water.
5. How many ATP molecules are produced in total from one glucose molecule in
aerobic respiration?
A. 2
B. 4
C. 36–38
D. 100
Answer: C
Rationale: Aerobic respiration yields ~36–38 ATP per glucose.
6. Photosynthesis occurs in the:
A. Mitochondria
B. Chloroplasts
C. Ribosomes
D. Endoplasmic reticulum
Answer: B
Rationale: Chloroplasts contain chlorophyll for photosynthesis.
7. The light-dependent reactions occur in the:
A. Stroma
B. Thylakoid membrane
C. Cytoplasm
D. Nucleus
, Answer: B
Rationale: Light reactions happen in thylakoid membranes, producing ATP and NADPH.
8. The Calvin cycle occurs in the:
A. Thylakoid membrane
B. Stroma
C. Cytoplasm
D. Outer membrane
Answer: B
Rationale: The Calvin cycle uses ATP and NADPH in the stroma to produce glucose.
9. The oxygen produced during photosynthesis comes from:
A. CO₂
B. H₂O
C. Glucose
D. ATP
Answer: B
Rationale: Water is split during light reactions, releasing oxygen.
10. Which pigment absorbs light energy in photosynthesis?
A. Hemoglobin
B. Chlorophyll
C. Keratin
D. Melanin
Answer: B
Rationale: Chlorophyll absorbs light for photosynthesis.
SECTION 2 — CELL DIVISION: MITOSIS & MEIOSIS
Answers Plus Rationales, Well Elaborated
| Already Verified Test |100% Verified
solutions
1. What is the main purpose of cellular respiration?
A. To create glucose
B. To produce ATP
C. To produce oxygen
D. To store energy
Answer: B
Rationale: Cellular respiration breaks down glucose to produce ATP, the cell’s energy currency.
2. Which organelle is the site of cellular respiration?
A. Chloroplast
B. Mitochondria
C. Ribosome
D. Nucleus
Answer: B
Rationale: Mitochondria are the primary site of ATP production via respiration.
3. Glycolysis occurs in the:
A. Mitochondrial matrix
B. Cytoplasm
C. Nucleus
D. Golgi apparatus
Answer: B
Rationale: Glycolysis is anaerobic and occurs in the cytoplasm.
,4. The final electron acceptor in aerobic respiration is:
A. Carbon dioxide
B. Oxygen
C. NADH
D. Glucose
Answer: B
Rationale: Oxygen accepts electrons at the end of the ETC to form water.
5. How many ATP molecules are produced in total from one glucose molecule in
aerobic respiration?
A. 2
B. 4
C. 36–38
D. 100
Answer: C
Rationale: Aerobic respiration yields ~36–38 ATP per glucose.
6. Photosynthesis occurs in the:
A. Mitochondria
B. Chloroplasts
C. Ribosomes
D. Endoplasmic reticulum
Answer: B
Rationale: Chloroplasts contain chlorophyll for photosynthesis.
7. The light-dependent reactions occur in the:
A. Stroma
B. Thylakoid membrane
C. Cytoplasm
D. Nucleus
, Answer: B
Rationale: Light reactions happen in thylakoid membranes, producing ATP and NADPH.
8. The Calvin cycle occurs in the:
A. Thylakoid membrane
B. Stroma
C. Cytoplasm
D. Outer membrane
Answer: B
Rationale: The Calvin cycle uses ATP and NADPH in the stroma to produce glucose.
9. The oxygen produced during photosynthesis comes from:
A. CO₂
B. H₂O
C. Glucose
D. ATP
Answer: B
Rationale: Water is split during light reactions, releasing oxygen.
10. Which pigment absorbs light energy in photosynthesis?
A. Hemoglobin
B. Chlorophyll
C. Keratin
D. Melanin
Answer: B
Rationale: Chlorophyll absorbs light for photosynthesis.
SECTION 2 — CELL DIVISION: MITOSIS & MEIOSIS
