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Photosynthesis Practice Test

Total questions: 56

Worksheet time: 37mins

Name
Class
Date
1.

During photosynthesis, the energy from the sun is used to split water molecules into hydrogen and oxygen.

a)

True

b)

False

2.

Which of the following statements best describes the term photosynthesis?

a)

When plants absorb the energy from the sun.

b)

How plants reproduce.

c)

The process by which plants make their own food.

d)

The process by which animals make their own food.

3.

Which of the following is needed for the process of photosynthesis? (Select all the apply)

a)

Water

b)

Oxygen

c)

Starch

d)

Carbon dioxide

4.

Chlorophyll is:

a)

The substance that makes plants green.

b)

Found inside the chloroplast cells.

c)

Used to absorb energy from the sun.

d)

All of the above.

5.

The openings that are found in the leaves of plants are called:

a)

Stomata

b)

Chlorophyll

c)

Xylem

d)

Chloroplast

6.

The tubes that carry water through the roots and stems are called:

a)

Stomata

b)

Chlorophyll

c)

Xylem

d)

Chloroplast

7.

The process of photosynthesis takes place in the:

a)

Leaves of the Plant.

b)

Stem of the plant.

c)

Roots of the plant.

d)

All of the above.

8.

Plants store food in:

a)

Leaves

b)

Stems

c)

Roots

d)

All of the above.

9.
Which organelle performs PHOTOSYNTHESIS?
a)
Chloroplast
b)
Mitochondria
10.
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
11.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
12.

What is the pigment in chloroplasts that performs photosynthesis?

a)

Chlorosynthesis

b)

Chlorophyll

c)

Chloroplast

d)

Green

13.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
14.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
15.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
16.

Chloroplasts are...

a)

Structures of animal cells to produce ATP

b)

Organelles where lipids are elaborated

c)

Organelles in plant cells where photosynthesis takes place

d)

Waste organelle of plants

17.
Leaves look green because.....
a)
they eat their vegetables
b)
to blend into their environment
c)
they contain a molecule named chlorophyll
d)
they are sick
18.
Which statement about photosynthesis is correct?
a)
Plants get the energy they need for photosynthesis from water.
b)
Plants get the energy they need for photosynthesis from soil.
c)
Plants get the energy they need for photosynthesis from sunlight.
d)
Plants do not require energy to perform photosynthesis.
19.
What gas goes into the plant before photosynthesis?
a)
Carbon Dioxide
b)
Carbon Monoxide
c)
Oxygen
d)
Nitrogen
20.
What three things are needed for a plant to do photosynthesis?
a)
Glucose, Oxygen, Sunlight
b)
CO2, Oxygen, Sunlight
c)
CO2, Water, Sunlight
d)
Oxygen, Water, Sunlight
21.
What are the reactants (what's needed) for photosynthesis?
a)
glucose and oxygen
b)
light, water, and carbon dioxide
22.
What gas is released by plants during photosynthesis?
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
23.

What is the purpose of photosynthesis?

a)

make glucose/food

b)

make ATP

c)

make light

d)

release carbon dioxide

24.

How does oxygen get released by the producer (plant)? Name the structure in the leaf.

a)

stomata

b)

xylem

c)

phloem

d)

chloroplast

25.

How does glucose travel in a producer (plant)? Name the structure.

a)

xylem

b)

phloem

c)

stomata

d)

chlorophyll

26.

Which of the following are TRUE statements? (Select ALL that apply)

a)

Photosynthesis takes place in the chloroplasts of leaf cells

b)

Photosynthesis means "making food using sun"

c)

Photosynthesis can occur in the dark

d)

All plants, plant-like protists, and some bacteria go through photosynthesis

27.

Which part of the plant holds the main networks of xylem and phloem?

a)

leaves

b)

petals

c)

stem

d)

roots

28.

Xylem carries-

a)

water up from the roots

b)

water down from the leaves

c)

Glucose from the roots

d)

Glucose down the stem

29.

Phloem carries-

a)

Glucose all around the plant

b)

Glucose to the roots only

c)

Water all around the plant

d)

Water up from the roots

30.

Where is the main site of photosynthesis on a plant?

a)

Stem

b)

Leaves

c)

Petals

d)

Pollen

31.

Photosynthesis produces Glucose for plants. This is a form of __________________________ for plants.

a)

Chemical energy

b)

Thermal energy

c)

Light energy

d)

Radiant energy

32.
Because plants carry out photosynthesis, they are considered _____.
a)
heterotrophs
b)
autotrophs
c)
consumers
d)
unicellular
33.
What is the chemical formula for glucose?
a)
C6H12O6
b)
C6H6O12
c)
C12H6O12
d)
C6O2H6
34.
What is the chemical formula for water?
a)
H2O
b)
HO2
c)
CHO2
d)
CO2H
35.
What is the chemical formula for carbon dioxide?
a)
H2O
b)
CO2
c)
CHO2
d)
CO2H
36.
What is the chemical formula for oxygen?
a)
H12O2
b)
C6O2
c)
O3
d)
O2
37.

Why do plants need sunlight for photosynthesis?

a)

The light creates heat needed for photosynthesis to occur

b)

The light provides the energy needed to power photosynthesis

c)

Plants can't absorb carbon dioxide in darkness

d)

Plants can't absorb water in darkness

38.
____________________ provides the energy necessary for photosynthesis.
a)
water
b)
sunlight
c)
glucose
d)
soil
39.
Glucose is a ...
a)
sugar
b)
carbohydrate
c)
source of quick energy
d)
all are correct
40.
The reactant of photosynthesis are...
a)
sunlight and chlorophyll
b)
glucose and oxygen
c)
carbon dioxide and water
d)
sunlight and water
41.

Which of the following shows a balanced chemical equation for photosynthesis?

a)

6CO₂ + 6H₂O + Solar Energy → C₆H₁₂O₆ + 6O₂

b)

3CO₂ + 3H₂O + Solar Energy → 3C₆H₁₂O₆ + 3O₂

c)

C₆H₁₂O₆ + O₂ → CO₂ + H₂O + ATP

d)

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP

42.

Which of the following is the correct chemical formula for PHOTOSYNTHESIS?

a)

carbon dioxide + water --> oxygen + glucose

b)

carbon dioxide + glucose + water --> oxygen

c)

oxygen + water --> carbon dioxide + glucose

d)

glucose+ oxygen ---> water + carbon dioxide

43.
What is another name for glucose?
a)
Chlorophyll
b)
Chloroplasts
c)
Stomata
d)
Sugar
44.
This image shows the process of _____.
a)
Respiration
b)
Photosystem I
c)
Dark Reactions
d)
Photosynthesis
45.
Which organisms perform Photosynthesis?
a)
Only Autotrophs
b)
Only Heterotrophs
c)
Autotrophs and Heterotrophs
46.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
47.
Which terms best describe heterotrophs?
a)
Plants; producers
b)
Animals; producers
c)
Plants; consumers
d)
Animals; consumers
48.
Which terms best describe autotrophs?
a)
Plants; producers
b)
Animals; producers
c)
Plants; consumers
d)
Animals; consumers
49.
From where do autotrophs obtain their energy?
a)
The sun
b)
Other organisms
50.
What is another name to describe an autotroph?
a)
Consumer
b)
Producer
51.
What is another name to describe a heterotroph?
a)
Consumer
b)
Producer
52.
How can animals and fungi best be classified?
a)
Autotroph
b)
Heterotroph
53.
Which type of organisms are typically plants?
a)
Autotrophs
b)
Heterotrophs
54.
Which type of organisms perform photosynthesis?
a)
Autotrophs
b)
Heterotrophs
55.
Organisms that cannot make their own food and must obtain energy from external sources are called
a)
autotrophs
b)
heterotrophs
c)
thylakoids
d)
plants
56.
What is an autotroph?
a)
an organism that can make their own food. 
b)
an organism that cannot make their own food
c)
Herbivore
d)
Omnivore

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