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MCQs

Total Questions : 88 | Page 9 of 9 pages
Question 81. . Glycolysis takes places in the __________ and produces __________ , which in the presence of oxygen then enters the __________ .
  1.    cytosol; glucose; mitochondrion to complete fermentation
  2.    cytosol; pyruvate; mitochondrion to complete fermentation
  3.    cytosol; pyruvate; mitochondrion to complete cellular respiration
  4.    mitochondrion; pyruvate; chloroplast to complete photosynthesis
 Discuss Question
Answer: Option C. -> cytosol; pyruvate; mitochondrion to complete cellular respiration
Question 82. . Assume the combined processes of photosynthesis and cellular respiration, the electrons that start as part of H2O at the beginning of the light reactions end up attaching to
  1.    O2 to make new H2O
  2.    NADPH to make new glucose
  3.    pyruvate to make ethanol
  4.    electron transport carriers to make O2
 Discuss Question
Answer: Option A. -> O2 to make new H2O
Question 83. . The electrons that are released by the splitting of water during photosynthesis ultimately end up in
  1.    ATP
  2.    O2
  3.    NADPH
  4.    rubisco
 Discuss Question
Answer: Option C. -> NADPH
Question 84. . Rubisco (RuBP Carboxylase-oxygenase enzyme), glyceraldehyde 3-phosphate, and NADPH all play a role in
  1.    the dark reactions of photosynthesis
  2.    the breakdown of glucose into CO2
  3.    cellular respiration when O2 is present
  4.    alcohol fermentation
 Discuss Question
Answer: Option A. -> the dark reactions of photosynthesis
Question 85. . What process in cellular respiration is essentially the reverse of carbon fixation in photosynthesis?
  1.    Glycolysis
  2.    Citric acid cycle
  3.    Oxidative phosphorylation
  4.    Alcohol fermentation
 Discuss Question
Answer: Option B. -> Citric acid cycle
Question 86. .  What do coenzyme A, CO2, oxaloacetate, and FADH2 all have in common?
  1.    They are all components or products of the citric acid cycle
  2.    They are part of the dark reactions of photosynthesis
  3.    They are part of the reactions of lactic acid fermentation
  4.    They are all elements of oxidative phosphorylation
 Discuss Question
Answer: Option A. -> They are all components or products of the citric acid cycle
Question 87. . If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?
  1.    In the water used
  2.    In the NADPH
  3.    In the carbohydrate produced
  4.    In the oxygen given off by the plant
 Discuss Question
Answer: Option C. -> In the carbohydrate produced
Question 88. . If the oxygen is labeled in CO2 and provide this CO2 to a plant, where it is expected to find this labeled oxygen after the plant had undergone photosynthesis?
  1.    In the water used
  2.    In the NADPH
  3.    In the carbohydrate produced
  4.    In the oxygen given off by the plant
 Discuss Question
Answer: Option C. -> In the carbohydrate produced

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