8th Grade Science
Questions: Photosynthesis and Respiration
1. During respiration, what is glucose used for?
2. What is the primary light-gathering pigment in plants?
3. What do you call the plant colorings, other than chlorophyll, that help the cells to trap
light?
4. In what part of photosynthesis is water split and oxygen released?
5. What is the energy from ATP and NADPH used for in the Calvin Cycle?
6. What environmental cycle involves photosynthesis and respiration as a major process?
7. What purpose does oxygen serve in respiration?
8. What is the maximum number of ATP generated in aerobic respiration?
9. What is the source of oxygen released by plants in photosynthesis?
10. In what cellular organelle does respiration occur?
11. In what cellular organelle does photosynthesis occur?
12. In what cellular jorganelle does glycolisis occur?
13. Aside from oxygen, what else is produced by the light reaction of photosynthesis?
14. What does the word photosynthesis mean?
15. What are the end products of photosynthesis?
16. What are the reactants for photosynthesis?
17. Where is the energy used in photosynthesis obtained?
18. In which part of the leaf does photosynthesis primarily occur?
19. What type of cell controls the size of a stamate in a leaf?
20. What is the function of chlorophyll?
21. What part of the visible spectrum is not absorbed by chlorophyll?
22. What are the tiny disk-like structures in chloroplasts that contain chlorophyll?
23. What three substances must be supplied to the Calvin Cycle?
24. What is the main source of energy for cells?
25. How many ATP are produced by glycolysis?
26. What is the step of aerobic respiration that follows the Krebs Cycle?
27. What is another name for the Krebs Cycle?
28. What are the raw materials for cellular respiration?
29. The type of respiration that causes muscle soreness is called what?
30. How many ATP are produced by fermentation?
31. In what step of respiration is glucose split into PGAL and then pyruvate?
32. When glucose is broken down in an environment that lacks oxygen, what process is
occurring?
33. Why would human muscle cells contain many more mitochondria than skin cells?