Photosynthesis Review Questions for AP Biology

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By — McGraw-Hill Professional
Updated on Oct 24, 2011

Review the following concepts if needed:

Review Questions

Questions 1–4 refer to the following answer choices— use each answer only once.

  1. Transpiration
  2. Calvin cycle
  3. CAM photosynthesis
  4. Cyclic photophosphorylation
  5. Noncyclic photophosphorylation
  1. Plants use this process so that they can open their stomata at night and close their stomata during the day to avoid water loss during the hot days, without depleting the plant's CO2 reserves.
  2. Uses NADPH, ATP, and CO2 as the inputs to its reactions.
  3. Photosynthetic process that has ATP as its sole product. There is no oxygen and no NADPH produced from these reactions.
  4. The process by which plants lose water via evaporation through their leaves.
  5. The photosynthetic process performed by some plants in an effort to survive the hot and dry conditions of climates such as the desert is called
    1. carbon fixation.
    2. C3 photosynthesis.
    3. C4 photosynthesis.
    4. cyclic photophosphorylation.
    5. noncyclic photophosphorylation.
  6. Which of the following is the photosynthetic stage that produces oxygen?
    1. The light-dependent reactions
    2. Chemiosmosis
    3. The Calvin cycle
    4. Carbon fixation
    5. Photorespiration
  7. Which of the following reactions occur in both cellular respiration and photosynthesis?
    1. Carbon fixation
    2. Fermentation
    3. Reduction of NADP+
    4. Chemiosmosis
    5. Formation of NADH
  8. Which of the following is not a product of the light-dependent reactions of photosynthesis?
    1. O2
    2. ATP
    3. NADPH
    4. Sugar
  9. Which of the following is an advantage held by a C4 plant?
    1. More efficient light absorption
    2. More efficient photolysis
    3. More efficient carbon fixation
    4. More efficient uptake of carbon dioxide into the stomata
    5. More efficient ATP synthesis during chemiosmosis
  10. Carbon dioxide enters the plant through the
    1. Stomata
    2. Stroma
    3. Thylakoid membrane
    4. Bundle sheath cell
  11. Which of the following is the source of the oxygen released during photosynthesis?
    1. CO2
    2. H2O
    3. Rubisco
    4. PEP carboxylase
    5. Pyruvate
  12. Which of the following is an incorrect statement about the dark reactions of photo synthesis?
    1. The main inputs to the reactions are NADPH, ATP, and CO2.
    2. The main outputs of the reactions are NADP+, ADP, and sugar.
    3. More NADPH is used than ATP during the dark reactions.
    4. Carbon fixation is the first step of the process.
    5. The reactions occur in the stroma of the chloroplast.
  13. Which of the following is the source of the carbon in sugar produced during photo synthesis?
    1. CO2
    2. H2O
    3. Rubisco
    4. PEP carboxylase
    5. Pyruvate
  14. The light-dependent reactions of photosynthesis occur in the
    1. stroma.
    2. mitochondrial matrix.
    3. thylakoid membrane.
    4. cytoplasm.
    5. nucleus.
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