Photosynthesis and Respiration problems
- 1. Rubisco (RuBP Carboxylase-oxygenase enzyme), glyceraldehyde 3-phosphate, and NADPH all play a role in
Options- A. the dark reactions of photosynthesis
- B. the breakdown of glucose into CO2
- C. cellular respiration when O2 is present
- D. alcohol fermentation Discuss
Correct Answer: the dark reactions of photosynthesis
- 2. Hydrogen (electron) acceptor in the light reactions is
Options- A. ADP
- B. NADP+
- C. NAD+
- D. FADH Discuss
Correct Answer: NADP+
- 3. More ATP is manufactured during __________ than at any other time in all of cellular metabolism.
Options- A. fermentation
- B. glycolysis
- C. the light reactions of photosynthesis
- D. oxidative phosphorylation Discuss
Correct Answer: oxidative phosphorylation
- 4. Which of the following serves as a reactant in photosynthesis and a product in cellular respiration?
Options- A. O2
- B. CO2
- C. Sunlight
- D. ATP Discuss
Correct Answer: CO2
- 5. A eukaryotic cell that can carry out only fermentation instead of the complete aerobic respiration of glucose
Options- A. produces less CO2
- B. is lacking in O2
- C. has mitochondria present
- D. all of these Discuss
Correct Answer: all of these
- 6. During the light-dependent reactions of photosynthesis, which of the following does not occur?
Options- A. Splitting of water
- B. Carbon dioxide fixation
- C. Release of oxygen
- D. Absorption of light energy by photosystems Discuss
Correct Answer: Carbon dioxide fixation
- 7. What is the maximum absorption wavelength for photosystem I in green plants?
Options- A. 550 nm
- B. 600 nm
- C. 700 nm
- D. 750 nm Discuss
Correct Answer: 700 nm
- 8. The rate of photorespiration in most plants increases at.higher temperatures. Some plants have evolved a somewhat round-about system to deal with this problem. This series of reactions is called
Options- A. ETS (electron transfer system in light reactions
- B. C4 pathway
- C. Photosystem II
- D. Calvin cycle Discuss
Correct Answer: C4 pathway
- 9. A cyclic electron transport process is the characteristic of
Options- A. photosynthesis
- B. methane oxidation
- C. sulfide oxidation
- D. methane production Discuss
Correct Answer: photosynthesis
- 10. The breakdown of glucose occurs by the process known as
Options- A. glycolysis
- B. fermentation
- C. anaerobic respiration
- D. Krebs cycle Discuss
Correct Answer: glycolysis
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