Photosynthesis Practice Worksheet With Answer Key Page 6
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13Photo_Cell_Resp_Practice
20. Which of these best explains the di erence between the way animals and plants exchange gases with their
environments?
A. Animals use only photosynthesis, while plants use both photosynthesis and respiration.
B.
Animals use only respiration, while plants use both photosynthesis and respiration.
C.
Animals use both photosynthesis and respiration, while plants use only respiration.
D. Animals use both photosynthesis and respiration, while plants use only photosynthesis.
21.
Which of these would lead to a lower rate of photosynthesis in a plant?
A. an increase in the amount of oxygen in the air
B.
a decrease in the amount of oxygen in the air
C.
an increase in the amount of carbon dioxide in the air
D. a decrease in the amount of carbon dioxide in the air
22. Which statement describes a way in which cellular respiration di ers from photosynthesis?
A. Cellular respiration consists of two phases.
B.
Cellular respiration releases carbon dioxide.
C.
Cellular respiration provides energy for the cell.
D. Cellular respiration is carried out in one speci c organelle.
23. Which statement best distinguishes aerobic from anaerobic respiration?
A. Only aerobic respiration involves fermentation.
B.
Only anaerobic respiration occurs in the mitochondria.
C.
Only aerobic respiration requires oxygen.
D. Only anaerobic respiration produces carbon dioxide.
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