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WorksheetsPhotosynthesis Classwork
Total questions: 20
Worksheet time: 14mins
Name
Class
Date
1.
______ cannot complete photosynthesis without sun, carbon dioxide, and water.
a)
Plants
b)
Animals
c)
Consumers
d)
Stomata
2.
Plants benefit animals & atmosphere by producing ________.
a)
oxygen
b)
carbon dioxide
c)
stomata
d)
chorophyll
3.
What is the name of the sugars a plant produces after photosynthesis
a)
Glucose
b)
Sugar
c)
ATP
d)
Oxygen
4.
What are the 3 key ingredients needed for photosynthesis
a)
glucose, oxygen, carbon dioxide
b)
carbon dioxide, water, glucose
c)
water, soil, sunlight
d)
sunlight, water, carbon dioxide
5.
What gas do plants give off after conducting photosynthesis that humans/animals need in order to live?
a)
Oxygen
b)
Carbon
c)
Nitrogen
d)
Hydrogen
6.
After photosynthesis, plants store their energy as _________ .
a)
chlorophyll
b)
pigment
c)
glucose (sugar)
d)
Oxygen
7.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
8.
What major energy transformation occurs during photosynthesis?
a)
Thermal --> Chemical
b)
Kinetic --> Radiant
c)
Chemical --> Radiant
d)
Radiant --> Chemical
9.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
Exit: Water vapor
10.
__________ energy from the sun is changed intto __________ energy during photosynthesis
a)
Chemical energy to light energy
b)
Light energy to chemical energy
c)
Thermal energy to light energy
d)
Electrical energy to chemical enerfy
11.
What are the 3 key ingredients needed for photosynthesis
a)
glucose, oxygen, carbon dioxide
b)
carbon dioxide, water, glucose
c)
water, soil, sunlight
d)
sunlight, water, carbon dioxide
12.
Which of the following examples go through the process of photosynthesis?
a)
bees
b)
algae
c)
humans
d)
mushrooms
13.
If plants breathe in carbon dioxide, what do they breathe out?
a)
Nitrogen
b)
Oxygen
c)
Carbon monoxide
d)
Helium
14.
What gas do plants give off after conducting photosynthesis that humans/animals need in order to live?
a)
Oxygen
b)
Carbon
c)
Nitrogen
d)
Hydrogen
15.
What is photosynthesis?
a)
The process plants use to turn carbon dioxide and water into food.
b)
The process plants use to chlorophyll and sunlight into air.
c)
The process plants use to turn sunlight and chlorophyll into soil.
d)
The process plants use to turn chocolate and milk into chocolate milk.
16.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
17.
What part of the plant soaks up water for photosynthesis?
a)
roots
b)
leaf
c)
petals
d)
stem
18.
What is produced as a result of photosynthesis?
a)
glucose and chlorophyll
b)
water and light energy
c)
glucose and oxygen
d)
carbon dioxide and water
19.
How many raw materials (ingredients) does photosynthesis require?
a)
1
b)
2
c)
3
d)
4
20.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
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