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The Process of Photosynthesis Answers

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Which is the word equation for photosynthesis?

A
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Option A
B
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Option B
C
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Option C
D
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Option D
2
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Which is an example of why the process of photosynthesis is important to life on Earth?

A
Grass uses photosynthesis to produce glucose, which is used within the grass for growth.
B
Fungi use photosynthesis to decompose dead and decaying plant matter.
C
Ectothermic animals use photosynthesis to convert sunlight into energy for cell functions.
D
Green plants use photosynthesis to remove oxygen gas from the atmosphere and replenish the earth’s carbon dioxide.
3

Johannes wants to know whether soil, water, or both are needed for plant growth. He chooses to conduct experiments on a willow tree for five years to answer his question. How can his experimental methods be changed to improve his experiment?

A
He needs to ask scientists what they think.
B
He needs to conduct the experiment for a longer period.
C
He needs to use a larger sample size.
D
He needs to test more factors in the environment.
4

Photosynthesis is important to living organisms because it is

A
the foundation of most food chains.
B
the source of nitrogen gas in the air.
C
how animals get carbon dioxide to breathe.
D
the process that occurs in most ecosystems.
5

In which situation would it be least likely for a scientist to revise her experimental methods?

A
if her results support her hypothesis
B
if her data do not support her hypothesis
C
if no conclusions can be drawn from the data
D
if results are the same after repeating the procedure
6

Which statement best describes what a thylakoid does during photosynthesis?

A
surrounds the grana and keeps them moist
B
enables the light-dependent reactions to occur
C
combines carbon dioxide and water to make sugar
D
helps the light-independent reactions to occur
7

Which statement summarizes a change that occurs during photosynthesis?

A
It converts visible light to high-energy gamma rays.
B
It converts carbon to oxygen.
C
It converts light energy to chemical energy.
D
It converts energy to mass.
10

Which of these statements is true about autotrophs, but not heterotrophs?

A
They use sugar and oxygen to make carbon dioxide and water.
B
They use chlorophyll and oxygen to make carbon dioxide and water.
C
They use sunlight, water, and carbon dioxide to make sugars.
D
They use sunlight, water, and oxygen to make chlorophyll.

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