Photosynthesis Practice Worksheet With Answer Key Page 2
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13Photo_Cell_Resp_Practice
4.
A sprig of an Elodea plant was placed in a test tube as shown below. The test tube was then placed in sunlight
for 6 hours.
The bubbles of gas in the diagram are composed mainly of
A. carbon monoxide
B.
carbon dioxide
C.
nitrogen
D. oxygen
5.
A student picked up Ball A o a shelf and threw it. Which of the following would show the ow of energy from
its source?
A. Light energy from the sun ! chemical energy in food ! chemical energy in the student ! mechanical energy
in the ball
B.
Light energy from the sun ! chemical energy in the student ! chemical energy in food ! mechanical energy
in the ball
C.
Chemical energy in the student ! mechanical energy in the ball ! chemical energy in food ! light energy
from the sun
D. Chemical energy in the student ! chemical energy in food ! mechanical energy in the ball ! light energy
from the sun 2002
6.
In the process of photosynthesis, light energy is used to split water into hydrogen and oxygen. The hydrogen
combines with carbon dioxide to ultimately produce
.
A. glucose
B.
nitrates
C.
chlorophyll
D. hydrogen peroxide
7.
Plants, like all other organisms, are composed of cells.
A group of students placed spinach leaves in a beaker of water in full sunlight. After several hours, small bubbles
appeared on the leaves. These bubbles probably consisted of
.
A. H
O
B.
O
C.
CO
D. H
2
2
2
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page 2
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