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Topic 1.2
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1
Photosynthesis…
A)breaks down stored energy into light energy.
B)converts light energy into chemical energy.
C)converts energy in chemical compounds into useable energy.
D)breaks down plant material to form energy.
2
The products of photosynthesis are…
A)carbon dioxide and useable energy.
B)glucose and carbon dioxide.
C)light energy and oxygen.
D)glucose and oxygen.
3
Cellular respiration produces…
A)carbon dioxide that green plants need to carry out photosynthesis.
B)oxygen that green plants need to carry out photosynthesis.
C)oxygen that animals need to survive.
D)carbon dioxide that animals need to survive.
4
Which of the following are producers?
A)algae, grass
B)algae, minnows
C)grasshoppers, blue jays
D)mosquito larvae, perch
5
A food web describes…
A)how energy in an ecosystem is transferred through one food chain.
B)how producers transfer energy through food chains.
C)how consumers transfer energy through food chains.
D)how energy in an ecosystem is transferred through two or more food chains.
6
Approximately what percentage of food energy is passed from a producer to a consumer?
A)one percent
B)ten percent
C)fifty percent
D)one hundred percent
7
What happens to the energy that is released from a food chain?
A)It is absorbed by plants in the ecosystem.
B)It is absorbed by animals in the ecosystem.
C)It is lost to the environment in an unusable form.
D)It is recycled through the food chain.





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