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Light-dependent reactions and the Calvin cycle

11th grade (Year 12 in England) · 16 questions · Common Core: NGSS.HS-LS1-5 · England: A level Biology: Photosynthesis (extension)

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  1. Question 1

    Which stage of photosynthesis: make ATP and NADPH?

    • A. light-dependent reactions
    • B. Calvin cycle (light-independent)

  2. Question 2

    Where in the chloroplast is chlorophyll found?

    • A. in the thylakoid membranes
    • B. in starch grains
    • C. in the stroma
    • D. in the outer membrane only

  3. Question 3

    Stages of photosynthesis: which statement is NOT true?

    • A. The Calvin cycle uses ATP and NADPH.
    • B. The light-dependent reactions release oxygen.
    • C. The Calvin cycle takes place in the stroma.
    • D. Carbon dioxide is split to release oxygen.

  4. Question 4

    Which stage of photosynthesis: happens in the stroma?

    • A. light-dependent reactions
    • B. Calvin cycle (light-independent)

  5. Question 5

    A plant is moved into darkness. Why does the Calvin cycle soon stop, even though it does not use light directly?

    • A. The stroma freezes
    • B. It runs out of ATP and NADPH from the light-dependent reactions
    • C. Carbon dioxide disappears in the dark
    • D. RuBisCO is destroyed by darkness

  6. Question 6

    Stages of photosynthesis: which statement is NOT true?

    • A. The Calvin cycle takes place in the stroma.
    • B. The light-dependent reactions release oxygen.
    • C. Chlorophyll is found in the thylakoid membranes.
    • D. Carbon dioxide is split to release oxygen.

  7. Question 7

    Which stage of photosynthesis: happen on the thylakoid membranes?

    • A. light-dependent reactions
    • B. Calvin cycle (light-independent)

  8. Question 8

    A plant is moved into darkness. Why does the Calvin cycle soon stop, even though it does not use light directly?

    • A. Carbon dioxide disappears in the dark
    • B. RuBisCO is destroyed by darkness
    • C. It runs out of ATP and NADPH from the light-dependent reactions
    • D. The stroma freezes

  9. Question 9

    Stages of photosynthesis: which statement is NOT true?

    • A. The Calvin cycle takes place in the stroma.
    • B. Chlorophyll is found in the thylakoid membranes.
    • C. The Calvin cycle uses ATP and NADPH.
    • D. The light-dependent reactions make glucose directly.

  10. Question 10

    Which stage of photosynthesis: happen on the thylakoid membranes?

    • A. light-dependent reactions
    • B. Calvin cycle (light-independent)

  11. Question 11

    Scientists gave algae water containing a heavy oxygen isotope (¹⁸O). Where did the ¹⁸O end up?

    • A. in the glucose made
    • B. in the carbon dioxide absorbed
    • C. in the chlorophyll
    • D. in the oxygen gas released

  12. Question 12

    Stages of photosynthesis: which statement is NOT true?

    • A. The Calvin cycle takes place in the stroma.
    • B. The Calvin cycle only happens at night.
    • C. Chlorophyll is found in the thylakoid membranes.
    • D. The Calvin cycle uses ATP and NADPH.

  13. Question 13

    Which stage of photosynthesis: happens in the stroma?

    • A. light-dependent reactions
    • B. Calvin cycle (light-independent)

  14. Question 14

    Where in the chloroplast is chlorophyll found?

    • A. in the stroma
    • B. in starch grains
    • C. in the thylakoid membranes
    • D. in the outer membrane only

  15. Question 15

    Stages of photosynthesis: which statement is NOT true?

    • A. The Calvin cycle uses ATP and NADPH.
    • B. The light-dependent reactions release oxygen.
    • C. Chlorophyll is found in the thylakoid membranes.
    • D. The light-dependent reactions make glucose directly.

  16. Question 16

    Which stage of photosynthesis: make ATP and NADPH?

    • A. light-dependent reactions
    • B. Calvin cycle (light-independent)

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Answer key: Light-dependent reactions and the Calvin cycle

  1. 1. A. light-dependent reactions

  2. 2. A. in the thylakoid membranes

  3. 3. D. Carbon dioxide is split to release oxygen.

  4. 4. B. Calvin cycle (light-independent)

  5. 5. B. It runs out of ATP and NADPH from the light-dependent reactions

  6. 6. D. Carbon dioxide is split to release oxygen.

  7. 7. A. light-dependent reactions

  8. 8. C. It runs out of ATP and NADPH from the light-dependent reactions

  9. 9. D. The light-dependent reactions make glucose directly.

  10. 10. A. light-dependent reactions

  11. 11. D. in the oxygen gas released

  12. 12. B. The Calvin cycle only happens at night.

  13. 13. B. Calvin cycle (light-independent)

  14. 14. C. in the thylakoid membranes

  15. 15. D. The light-dependent reactions make glucose directly.

  16. 16. A. light-dependent reactions