WorksheetsPhotosynthesis
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What are autotrophs?
a)
An organism that cannot make it’s own food.
b)
An organism that eats food.
c)
An organism that makes its own food.
2.
2. What makes a plant green?
a)
carbon
b)
the sun
c)
chlorophyll
3.
3. Why do living things need energy?
a)
To move around
b)
To reproduce
c)
To carry out life's functions
d)
All of the above
4.
4. How do plants obtain energy?
a)
From the
dirt
b)
From the
stomata
c)
From the
sunlight
5.
5. How does an insect eating a leaf show its dependence on the sun?
a)
because the
sun provides light
b)
When an
insect eats the leaf it has produced energy from photosynthesis and the process
of photosynthesis requires sunlight
c)
The insect
does not depend on the sun.
6.
6. Which is the chemical equation for photosynthesis?
a)
6CO2 + 6H2O ------>C6H12O6 + 6O2
b)
Fe + Cl2 = FeCl3
c)
C6H5COOH + O2 = CO2 + H2O
d)
H2SO4 + K4Fe(CN)6 + KMnO4
7.
7. In the photosynthesis equation explain the role of light energy.
a)
light energy
is needed for pigment.
b)
light energy
is discarded in photosynthesis
c)
light energy
is needed in order for the chemical reaction to occur.
8.
8. What are the substances needed for photosynthesis
a)
water and
oxygen
b)
water and
sugar
c)
water and
carbon dioxide
9.
9. What substances are produced during photosynthesis?
a)
sugar and
oxygen
b)
carbon
dioxide and salt
c)
oxygen and
chlorophyll
10.
10. Which type of day would you expect a plant to produce more oxygen
a)
Cloudy
b)
Rainy
c)
Sunny
d)
Doesn't matter
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