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L4- Photosynthesis Practice Test

Total questions: 50

Worksheet time: 46mins

Name
Class
Date
1.

What is the process by which producers capture energy from sunlight and use it to produce sugars?

a)

Respiration

b)

Photosynthesis

c)

Fermentation

d)

Combustion

2.

What is the green pigment essential for photosynthesis?

a)

Chlorophyll

b)

Melanin

c)

Hemoglobin

d)

Carotene

3.

Where do producers get the matter they need for photosynthesis?

a)

From other organisms

b)

From the air and water

c)

From the sun

d)

From the soil

4.

What is the main product of photosynthesis?

a)

Oxygen

b)

Water

c)

Glucose

d)

Carbon dioxide

5.

What is the purpose of storing energy and matter in producers?

a)

To attract pollinators

b)

To regulate temperature

c)

To support life processes

d)

To defend against predators

6.

What is the primary role of chlorophyll in photosynthesis?

a)

Absorbing sunlight

b)

Storing energy

c)

Producing oxygen

d)

Absorbing carbon dioxide

7.

What is the chemical equation for photosynthesis?

a)

6O2 + 6H2O + Sunlight -> 6CO2 + C6H12O6

b)

6C6H12O6 + 6O2 -> 6CO2 + 6H2O + Sunlight

c)

6CO2 + 6O2 + Sunlight -> C6H12O6 + 6H2O

d)

6CO2 + 6H2O + Sunlight -> C6H12O6 + 6O2

8.

What is the purpose of chloroplasts in photosynthesis?

a)

To absorb sunlight

b)

To store energy

c)

To produce oxygen

d)

To convert carbon dioxide into sugar

9.

What is the primary function of sugars in producers?

a)

To regulate temperature

b)

To store water

c)

To provide energy for growth

d)

To attract pollinators

10.

Select all that are raw materials for Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

11.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

12.
Where does CO2 enter the leaves through?
a)
Roots
b)
Stem
c)
Chloroplasts
d)
Stomata
13.

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.

14.

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

a)

Stomata

b)

Chlorophyll

c)

Xylem

d)

Chloroplast

15.

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.

16.

Plants store food in:

a)

Leaves

b)

Stems

c)

Roots

d)

All of the above.

17.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
18.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
19.
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
20.

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

21.
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
22.
What are the reactants (what's needed) for photosynthesis?
a)
glucose and oxygen
b)
light, water, and carbon dioxide
23.
What gas is released by plants during photosynthesis?
a)
sulfur
b)
carbon dioxide
c)
oxygen
d)
hydrogen
24.

What is the purpose of photosynthesis?

a)

make glucose/food

b)

make ATP

c)

make light

d)

release carbon dioxide

25.

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

a)

xylem

b)

phloem

c)

stomata

d)

chlorophyll

26.

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

a)

leaves

b)

petals

c)

stem

d)

roots

27.

Xylem carries-

a)

water up from the roots

b)

water down from the leaves

c)

Glucose from the roots

d)

Glucose down the stem

28.

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

29.
What is the chemical formula for glucose?
a)
C6H12O6
b)
C6H6O12
c)
C12H6O12
d)
C6O2H6
30.
What is the chemical formula for water?
a)
H2O
b)
HO2
c)
CHO2
d)
CO2H
31.
What is the chemical formula for carbon dioxide?
a)
H2O
b)
CO2
c)
CHO2
d)
CO2H
32.
What is the chemical formula for oxygen?
a)
H12O2
b)
C6O2
c)
O3
d)
O2
33.

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

34.
The reactant of photosynthesis are...
a)
sunlight and chlorophyll
b)
glucose and oxygen
c)
carbon dioxide and water
d)
sunlight and water
35.

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

36.
What is another name for glucose?
a)
Chlorophyll
b)
Chloroplasts
c)
Stomata
d)
Sugar
37.

Primary pigment in leaves that reflects green light

a)

anthocyanin

b)

chlorophyll

c)

xanthophyll

d)

carotene

38.

Openings in the lower epidermis that allow for gas and water exchange in plants

a)

stroma

b)

stomata

c)

guard cells

d)

mesophyll

39.
A living or once-living organisms in an ecosystem is a(n)?
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
40.
Biotic means
a)
living
b)
nonliving
41.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
42.
What are organisms that use other organisms for food in order to gain energy?
a)
decomposers
b)
producers
c)
herbivores
d)
consumers
43.

Which living thing is a producer?

a)

plankton

b)

animals

c)

plants

d)

bacteria

44.

Does a consumer make their own food?

a)

Yes

b)

No

45.

How do consumers get energy?

a)

by running fast

b)

by drinking water

c)

by sleeping

d)

by eating other organisms

46.

The 'outputs' of a chemical reaction. Located on the right side of a chemical equation.

a)

products

b)

produce

c)

consumers

d)

detritis

47.

A simple sugar that is an important energy source in living organisms

a)

stevia

b)

fructose

c)

glucose

d)

glycerin

48.

Taken in by the leaves of the plant to give the chloroplasts energy for food production.

a)

chlorophyll

b)

oxygen

c)

water

d)

sunlight

49.

How many water molecules are used as a reactant in photosynthesis?

a)

6

b)

12

c)

18

50.

Is Glucose (C6H12O6) a Raw Material (Ingredient) or Product of Photosynthesis?

a)

Product

b)

Raw Material

c)

Niether

d)

What's Photosynthesis?

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