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Worksheets3.1 Life Science
Total questions: 13
Worksheet time: 16mins
Name
Class
Date
1.
The chemical compound of water is
a)
HO
b)
H2O
c)
H3O
d)
HO2
2.
Water is a universal solvent
a)
True
b)
False
3.
Why is photosynthesis an example of a CHEMICAL change?
a)
it shows no new products being made
b)
it shows two new products being made
c)
it happens in plants
d)
because there is chemical energy
4.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
5.
What is the ORIGINAL source of energy for living things?
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
6.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
7.
Plants convert radiant energy (sunlight) to _______ energy (glucose) during photosynthesis.
a)
thermal
b)
chemical
c)
mechanical
d)
electrical
8.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
9.
What are the reactants of photosynthesis?
a)
water and carbon dioxide and radiant energy
b)
oxygen and glucose and thermal energy
c)
oxygen and carbon dioxide and radiant energy
d)
oxygen and water and thermal energy
10.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
11.
What is photosynthesis?
a)
The process in which humans eat their food
b)
When a photographer takes a photo.
c)
The process in which glucose releases energy.
d)
The process in which radiant energy is tramsformed into chemical energy
12.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Chloroplast
13.
What is the sugar plants produce during photosynthesis called?
a)
glucose
b)
sweet
c)
oxygen
d)
radiant energy
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