WorksheetsPhotosynthesis
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which part of a plant is responsible for the majority of photosynthesis?
a)
leaves
b)
stem
c)
roots
d)
stomata
2.
What makes a plant green?
a)
carbon
b)
the sun
c)
chlorophyll
3.
How do plants obtain energy?
a)
From the dirt
b)
From the stomata
c)
From the sunlight
4.
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
5.
What are the substances needed for photosynthesis
a)
water and oxygen
b)
water and sugar
c)
water and carbon dioxide
6.
What substances are produced during photosynthesis?
a)
sugar and oxygen
b)
carbon dioxide and salt
c)
oxygen and chlorophyll
7.
Which type of day would you expect a plant to produce more oxygen
a)
Cloudy
b)
Rainy
c)
Sunny
d)
Doesn't matter
8.
Organisms that make their own food
a)
autotrophs
b)
heterotrophs
c)
thylakoids
d)
plants
9.
Organisms that can not make their own food and must obtain energy from external sources are called..
a)
autotrophs
b)
heterotrophs
c)
thylakoids
d)
plants
10.
Plants gather the sun's energy with light-absorbing molecules called
a)
pigments
b)
thylakoids
c)
chloroplasts
d)
glucose
11.
A plant is releasing a gas. What is the mosl tlikely the gas?
a)
co2
b)
methane
c)
water vapor
d)
oxygen
12.
a)
pine cones
b)
chromosomes
c)
vacuole
d)
swimming pool
13.
a)
root
b)
leaves
c)
flower
d)
stem
14.
This plant cell part is what makes the plants food.
a)
gogi complex
b)
chromosome
c)
nucleus
d)
chloroplast
15.
In order to perform photosynthesis, leaves must absorb this from the sun.
a)
heat
b)
water
c)
a tan
d)
light
16.
Where is chlorophyll found?
a)
mitochondria
b)
chloroplast
c)
glucose
d)
ATP
17.
Glucose is __
a)
light energy
b)
chemical energy
c)
thermal energy
d)
kinetic energy
18.
Carbon dioxide enters the leave through what opening?
a)
root
b)
air
c)
stomata
19.
What is absorbed by the tree roots and transported to the leaves?
a)
air
b)
water
c)
carbon
20.
What is the correct formula for photosynthesis?
a)
Light + C6H12O6 + O2 -> CO2 + H2O
b)
Light + CO2 -> light + C6H12O6 + O2
c)
Light + CO2 + H2O -> C6H12O6 + O2
d)
C6H12O6 + O2 + Light + CO2 -> H2O
100 %
