1. Chapter 8
Test Review

2. What happens during photosynthesis?
Autotrophs consume carbohydrates.
b. Heterotrophs produce ATP.
c. Autotrophs produce carbohydrates.
d. Heterotrophs consume ATP.

3. Energy is released from ATP when
a. a phosphate group is added.
b. a phosphate group is removed.
c. adenine bonds to ribose.
d. ATP is exposed to sunlight.

4. Plants get the energy they need for photosynthesis by absorbing
a. high-energy sugars.
b. energy from the sun.
c. chlorophyll a.
d. chlorophyll b.

5. Why are electron carriers needed for transporting electrons from one part of the chloroplast to another?
a. High-energy electrons are highly reactive.
b. High-energy electrons get their energy from electron carriers.
c. High-energy electrons are not soluble in cytoplasm.
d. High-energy electrons would be destroyed.

6. Organisms, such as plants, that make their own food are called
a. pigments.
c. thylakoids.
b. heterotrophs.
d. autotrophs.

7. Photosynthesis uses sunlight to convert water and carbon dioxide into
a. oxygen and high-energy sugars.
b. oxygen and carbon.
c. ATP and oxygen.
d. high-energy sugars and proteins.

8. What are the three parts of an ATP molecule?
a. adenine, ribose, and three phosphate groups
b. stroma, grana, and chlorophyll
c. NADH, NADPH, and FADH2
d. adenine, thylakoid, and a phosphate group

9. If you continue to increase the intensity of light that a plant receives, what happens?
a. The rate of photosynthesis increases indefinitely with light intensity.
b. The rate of photosynthesis decreases indefinitely with light intensity.
c. The rate of photosynthesis increases and then levels off .
d. The rate of photosynthesis does not change.

10. Where in the chloroplast is chlorophyll found?
a. in the thylakoid space
b. in the thylakoid membrane
c. in the stroma
d. in the ATP

11. Why might the candle in jar A burn longer than the candle in jar B?
a. Carbon dioxide produced by the plant allows the candle to burn longer.
b. Chlorophyll produced by the plant allows the candle to burn longer.
c. Glucose produced by the plant allows the candle to burn longer.
d. Oxygen produced by the plant allows the candle to burn longer.

12. The stroma is the region outside the
a. chloroplasts.
b. plant cells.
c. thylakoids.
d. all of the above

13. What are the products of the light-dependent reactions?
a. ATP, NADPH, and oxygen gas
b. oxygen gas and glucose
c. carbon dioxide gas, oxygen gas, and NADPH
d. ATP, carbon dioxide gas, and NADPH

14. Most plants appear green because chlorophyll
a. does not absorb violet light.
b. does not absorb green light.
c. absorbs violet light.
d. absorbs green light.

15. The Calvin cycle takes place in the
a. stroma.
b. thylakoid membranes.
c. photosystems.
d. chlorophyll molecules.

16. The Calvin cycle is another name for the
a. electron transport chain.
b. photosynthesis reaction.
c. light-dependent reactions.
d. light-independent reactions.