AP Biology Practice Test (Chapter 10-photosynthesis)

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  • 1/28 Questions

    What does the "P" in NADP stand for?

    • Plants
    • Photosynthesis
    • A phosphate group
    • Pink
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About This Quiz

Plants undergo a lot of processes on a daily basis and the most important one is photosynthesis. Chapter ten mainly covered this interesting process and the test below will test just how much you understood on this topic. Give it a shot and keep on revising before the finals. Good luck!

Photosynthesis Quizzes & Trivia

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  • 2. 

    3 phases of calvin cycle, respectively are..?

    • Reduction, carbon fixation, regeneration of CO2 acceptor

    • Reproduction of CO2 acceptor, carbon fixer, deduction

    • Carbon fixation, reduction, regeneration of CO2 acceptor

    • Carbon fixer, deduction, reproduction of CO2 acceptor

    Correct Answer
    A. Carbon fixation, reduction, regeneration of CO2 acceptor
    Explanation
    The correct answer is "carbon fixation, reduction, regeneration of CO2 acceptor." In the Calvin cycle, carbon fixation is the process in which carbon dioxide is converted into an organic molecule. Reduction involves the conversion of the organic molecule into a carbohydrate using energy from ATP and NADPH. Lastly, regeneration of the CO2 acceptor involves the regeneration of the starting molecule, RuBP, which allows the cycle to continue.

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  • 3. 

    Why are leaves green?

    • Because they contain chlorophyll, a green pigment

    • Because leaves reflect or transmit green light only

    • Because leaves absorb violet-blue and red light

    Correct Answer
    A. Because leaves reflect or transmit green light only
    Explanation
    Leaves appear green because they reflect or transmit green light only. The green color of leaves is a result of the chlorophyll pigment present in them. Chlorophyll absorbs violet-blue and red light, while reflecting or transmitting green light. This selective absorption and reflection of light wavelengths by chlorophyll give leaves their characteristic green color.

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  • 4. 

    To synthesize one glucose molecule, the calvin cycle uses ___ molecules of CO2, ___ molecules of ATP, and ___ molecules of NADpH.

    Correct Answer
    6; 18; 12
    Explanation
    In the Calvin cycle, one glucose molecule is synthesized using 6 molecules of CO2, 18 molecules of ATP, and 12 molecules of NADPH. The Calvin cycle is a series of chemical reactions that take place in the stroma of chloroplasts, and it is responsible for converting carbon dioxide into glucose, a process known as carbon fixation. CO2 molecules are combined with molecules from ATP and NADPH to form glucose through a series of enzymatic reactions. Therefore, to synthesize one glucose molecule, 6 molecules of CO2, 18 molecules of ATP, and 12 molecules of NADPH are required.

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  • 5. 

    Check off the things that were NOT used in Engelmann's experiment?

    • Anaerobic bacteria

    • A prism to reflect and transmit light

    • Oxygen

    • Light

    Correct Answer(s)
    A. Anaerobic bacteria
    A. Oxygen
    Explanation
    Engelmann's experiment involved the use of a prism to reflect and transmit light and the presence of light itself. However, anaerobic bacteria and oxygen were not used in his experiment. Anaerobic bacteria do not require oxygen to survive, and since oxygen was not used, it suggests that the experiment did not involve the study of anaerobic bacteria.

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  • 6. 

    What is the general breakdown of a plant leaf? Go into every detail possible.

  • 7. 

    Define Heterotrophs

  • 8. 

    Define Autotrophs...what are Photoautotrophs then?and an example of photoautotrophs would be?

  • 9. 

    Draw the simplified Calvin Cycle.label each step, and each pHASE as well.don't forget to tell me how many carbons are in each step,and remember to mention the stuff going IN and coming OUT of the cycle, along with INPUT and OUTPUT!!

  • 10. 

    State the formula for photosynthesis?

  • 11. 

    What's photophosphorlyation?

  • 12. 

    What's carbon fixation?

  • 13. 

    How do the reactant molecules of photosynthesis reach the chloroplasts in leaves?

  • 14. 

    Define:(a) carrotenoid(b) photon

  • 15. 

    What are the 3 experiments used to see which lights are useable in photosynthesis?

  • 16. 

    What was Engelmann's experiment?

  • 17. 

    Difference between chlorophyll a and chlorophyll b?

  • 18. 

    Explain why a poison that inhibits an enzyme of the Calvin cycle will also inhibit the light reactions?

  • 19. 

    What color light is LEAST effective when driving photosynthesis? Explain.

  • 20. 

    In the light reactions, what is the initial electron donor? Where do the electrons end up?

  • 21. 

    What are C3 plants?what are C4 plants?

  • 22. 

    What are CAM plants?

  • 23. 

    What's PEP carboxylase?

  • 24. 

    Explain Crassulacean Acid Metabolism?

  • 25. 

    What are bundle-sheath cells?

  • 26. 

    Why does photorespiration lower photosynthetic outputs for plants? Explain.

  • 27. 

    Explain the 3 steps of C4 Photosynthesis?

  • 28. 

    What are the 8 steps in linear electron flow?

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  • Oct 31, 2023
    Quiz Edited by
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  • Nov 19, 2010
    Quiz Created by
    Zfariha
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