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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
stems
B
flowers
C
roots
D
leaves
2) Which of these is not needed to make food in a plant?
A
chlorophyll
B
oxygen
C
carbon dioxide
D
sunlight
3) If a plant does not have enough carbon dioxide, which of the following events could happen?
A
The plant will grow faster.
B
It will make less glucose.
C
It will have no effect on photosynthesis.
D
It will make more glucose.
4) What cell organelle contains chlorophyll?
A
cell membrane
B
vacuoles
C
chloroplast
D
mitochondria
5) The raw materials for photosynthesis are:
A
carbon dioxide and oxygen
B
oxygen and sugar (glucose)
C
light energy and sugar
D
carbon dioxide and water
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
Light energy is converted to chemical energy
B
Light energy is converted to mechanical energy
C
Radiant energy heats water in the plant to make food.
D
Heat energy changes materials in the soil to food for plant use.
8) Which of the following is the original source of energy for organisms on Earth?
A
atoms
B
Sun
C
water
D
plants
9) Which of the following do plants gain from sunlight?
A
water
B
sugar
C
carbon dioxide
D
energy
10) Sunlight is a form of
A
chemical energy
B
friction
C
mechanical energy
D
radiant energy
*select an answer for all questions
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