Test Your Knowledge Over Photosynthesis

13 Questions

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Photosynthesis Quizzes & Trivia

A brief quiz to test your knowledge about photosynthesis.


Questions and Answers
  • 1. 
    The site of photosynthesis in C4 plants is
    • A. 

      Stoma

    • B. 

      Mesophyll

    • C. 

      Bundle sheath cells

    • D. 

      Mitochondria

  • 2. 
    The "synthesis" part of photosynthesis is ______ because it produces ________.
    • A. 

      Dark reactions, sugar

    • B. 

      Light reactions, oxygen

    • C. 

      Calvin's Cycle, ATP

    • D. 

      Noncyclic photophosphorylation, NADPH

  • 3. 
    The primary pigment in photosynthesis is
    • A. 

      Chlorophyll a

    • B. 

      Chlorophyll b

    • C. 

      Carotinoids

    • D. 

      Xanthophyll

  • 4. 
    Which is not true of cyclic flow in the light reactions?
    • A. 

      It only uses photosystem I

    • B. 

      It produces no oxygen

    • C. 

      It forms ATP

    • D. 

      It forms NADPH

  • 5. 
    The electron acceptor of the final ETC is
    • A. 

      PSI

    • B. 

      CO2

    • C. 

      NADP+

    • D. 

      ADP

  • 6. 
    During the Calvin's Cycle, carbon dioxide comes from
    • A. 

      The light reactions

    • B. 

      Atmosphere

    • C. 

      The dark reactions

    • D. 

      Glucose

  • 7. 
    The primary activity of the reduction stage of the Calvin's cycle is
    • A. 

      Combining CO2 with RuBP by rubisco

    • B. 

      Rearrangement of G3P into RuBP

    • C. 

      Activation of PGA and the release of G3P

    • D. 

      Split of the unstable molecule into PGA

  • 8. 
    RuBP is a __ carbon compound.
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      6

  • 9. 
    C4 plants are adapted for carbon fixation
    • A. 

      At night

    • B. 

      To be absent

    • C. 

      In different areas of the leaf

  • 10. 
    Photorespiration
    • A. 

      Increases photosynthesis output

    • B. 

      Is encouraged by high carbon dioxide amounts

    • C. 

      Is brought on by decreasing oxygen levels

    • D. 

      Inhibits photosynthesis by interfering with rubisco

  • 11. 
    Which is not a notable difference between photosynthesis and respiration?
    • A. 

      Photosynthesis uses photophosphorylation and respiration uses oxidative phosphorylation

    • B. 

      Photosynthesis occurs in the thylakoid membrane and respiration occurs in the mitochondrial membrane

    • C. 

      Photosynthesis changes chemical energy into light energy and respiration changes food energy into ATP

  • 12. 
    In the electromagnetic spectrum, the wavelengths around 700 would be what color?
    • A. 

      Violet

    • B. 

      Green

    • C. 

      Yellow

    • D. 

      Red

  • 13. 
    The porphyrin ring of chlorophyll is for
    • A. 

      Creating magnesium

    • B. 

      Absorbing light

    • C. 

      Accepting energized electrons from water

    • D. 

      Forming ATP