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PHOTOSYNTHESIS/Cell Energy Review Sheet – Bio Honors
Study - this review sheet, notes, and starters...remember: lab scenarios make good question too.
1. What does ATP stand for? Where is energy stored in molecules? ATP? How can ATP be compared to a battery?
2. Distinguish between ATPase and ATP synthase.
3. Write out the equation for photosynthesis. Where does the oxygen gas come from? Where does it go?
4. What is the difference between an autotroph and heterotroph? Give an example of each. How are the two
related?
5. What are the pigment molecules found in most leaves? What is the purpose of these pigments? Give an example
of another organism besides plants that utilizes pigments.
6. Draw the order of the colors found in visible light, starting with the SHORTEST wavelength.
7. What color wavelengths of light do autotrophs absorb best? Which wavelength is shortest? Is this high energy or
low energy?
8. Would a plant grow better in blue light or yellow light? Explain why.
9. Why do leaves change color in the fall?
10. What does the energy from the sun allow proteins embedded in the thylakoid membrane to do?
11. List the substrates and products of the light-dependent reaction.
12. List the substrates and products of the Calvin Cycle.
13. Draw and label a chloroplast using the terms thylakoid, granum, stroma, and lumen. Where are these
structures found?
14. What molecules are recycled in photosynthesis?
15. Trace (in words) the pathway of electron flow in the LDR, starting with H20. What happens and why is this
important? What is the last electron acceptor? What would happen if this electron acceptor weren’t there?
16. When does carbon dioxide get fixed into sugars?
17. Distinguish between RUBP and Rubisco.
18. What does the Calvin cycle need from the light-dependent reaction in order to make sugar?
19. What are some factors that affect the rate of photosynthesis?
20. What is a photovoltaic cell? How is it similar to a plant performing photosynthesis? How is it different?
21. How are photosynthesis and cellular respiration related?
22. What is the function of stomata? How do they open and close? How do stomata help maintain homeostasis for a
plant?
23. How have some plants evolved to deal with higher temperatures? Explain how their mode for producing sugars is
different than a C3 plant.