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Photosynthesis
Test Description: 7th Grade TEKS based assessment on photosynthesis
Instructions: Answer all questions to get your test result.
1) Photosynthesis mainly occurs in which of the following structures?
A
roots
B
stems
C
leaves
D
flowers
2) Which of these is not needed to make food in a plant?
A
sunlight
B
chlorophyll
C
carbon dioxide
D
oxygen
3) If a plant does not have enough carbon dioxide, which of the following events could happen?
A
It will make more glucose.
B
The plant will grow faster.
C
It will have no effect on photosynthesis.
D
It will make less glucose.
4) What cell organelle contains chlorophyll?
A
cell membrane
B
chloroplast
C
mitochondria
D
vacuoles
5) The raw materials for photosynthesis are:
A
carbon dioxide and oxygen
B
oxygen and sugar (glucose)
C
carbon dioxide and water
D
light energy and sugar
6) As a result of photosynthesis, what is produced?
A
light energy and sugar
B
carbon dioxide and oxygen
C
oxygen and sugar (glucose)
D
carbon dioxide and water
7) The most accurate statement for the transfer of energy in photosynthesis is
A
Radiant energy heats water in the plant to make food.
B
Light energy is converted to chemical energy
C
Heat energy changes materials in the soil to food for plant use.
D
Light energy is converted to mechanical energy
8) Which of the following is the original source of energy for organisms on Earth?
A
water
B
Sun
C
atoms
D
plants
9) Which of the following do plants gain from sunlight?
A
carbon dioxide
B
sugar
C
energy
D
water
10) Sunlight is a form of
A
friction
B
radiant energy
C
mechanical energy
D
chemical energy
*select an answer for all questions
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