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- Question
In cells having organelles, the steps of the Krebs cycle and the electron transport system occur in the
Options- A. cell membrane
- B. mitochondria
- C. endoplasmic reticulum
- D. none of these
- Correct Answer
- mitochondria
- 1. In oxygenic photosynthesis, water is split in order to provide the
Options- A. electrons needed to reduce P680
- B. O2 needed for the dark reactions
- C. electrons needed to reduce NADH
- D. electrons needed for cyclic photophosphorylation Discuss
- 2. What process in cellular respiration is essentially the reverse of carbon fixation in photosynthesis?
Options- A. Glycolysis
- B. Citric acid cycle
- C. Oxidative phosphorylation
- D. Alcohol fermentation Discuss
- 3. The manufacture of ATP in both photosynthesis and respiration is made possible by
Options- A. the existence of a proton gradient across specific membranes
- B. the action of ATP synthase
- C. energy from the movement of electrons
- D. All of the above Discuss
- 4. The end products of noncyclic photophosphorylation are
Options- A. O2, ATP and NADPH
- B. carbon dioxide, PGAL (phosphoglyceraldehyde), and H2
- C. water, ADP and NADP+
- D. carbon dioxide, ATP and water Discuss
- 5. Where do the protons come from that make up the proton gradient used in the light reactions of photosynthesis?
Options- A. Glucose
- B. ATP
- C. H2O
- D. NADPH Discuss
- 6. 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
- 7. Hydrogen (electron) acceptor in the light reactions is
Options- A. ADP
- B. NADP+
- C. NAD+
- D. FADH Discuss
- 8. 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
- 9. 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
- 10. 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
Photosynthesis and Respiration problems
Search Results
Correct Answer: electrons needed to reduce P680
Correct Answer: Citric acid cycle
Correct Answer: All of the above
Correct Answer: O2, ATP and NADPH
Correct Answer: H2O
Correct Answer: the dark reactions of photosynthesis
Correct Answer: NADP+
Correct Answer: oxidative phosphorylation
Correct Answer: CO2
Correct Answer: all of these
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