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Photosynthesis

Total questions: 23

Worksheet time: 26mins

Name
Class
Date
1.

What does the word photosynthesis mean?

a)

to make something with books

b)

to make something with desks

c)

to make something with light

d)

to make something with windows

2.

What is the chemical formula for suger?

a)

C6H4O23

b)

C6 H12 O6

c)

C4 H3 O9

d)

C5 H9 O4

3.

What are the products of photosynthesis?

a)

Glucose

b)

sunlight

c)

water

4.

Why does chlorophyll make plants appear green?

a)

Reflecting all colors expect green

b)

Absorbing all colors and reflecting back green

c)

Not absorbing any colors

d)

Leaves aren't green, what do you mean?!

5.

Why are plants considered autotrophs

a)

They make their own food

b)

They provide food for others

6.

which of the following is a reactant to photosynthesis?

a)

Oxygen

b)

Carbohydrates

c)

Glucose

d)

Water

7.
What are the two products of photosynthesis?
a)
Oxygen and Carbon Dioxide
b)

Oxygen and Sugar

c)
Sunlight and Sugar
8.
Where does photosynthesis take place in the plant cell?
a)
Nucleus
b)
Cytoplasm
c)

Chloroplast

d)
Mitochondria
9.
The three things plants need are sunlight, water, and CO2 for photosynthesis.
a)
True
b)
False
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.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
12.
What are the reactants of photosynthesis?
a)
carbon dioxide and oxygen
b)
water and oxygen
c)
carbon dioxide and water
d)
water and glucose
13.

This is the chemical formula for a molecule of...

a)

Oxygen

b)

Carbon dioxide

c)

Glucose

d)

Water

14.

Which of the following light color is absorbed by plants?

a)

Red

b)

Green

c)

yellow

d)

Light green

15.

Which is not a reactant (left side) needed for producing food in a green plant.

a)

Carbon Dioxide

b)

Water

c)

Oxygen

d)

Sunlight

16.

What part of the leaf is responsible for absorbing the sun’s energy?

a)

Cell Wall

b)

Veins

c)

Chlorophyll

d)

Nucleus

17.

The stoma on the underside of the leaf allows ___________ to move in and out of the leaf.

a)

Gases

b)

Water

c)

Nutrients

d)

Soil

18.

Glucose is a type of _______________.

a)

Dairy Product

b)

Protein

c)

Salt

d)

Sugar

19.

Sun’s radiant energy falls under which part of the electromagnetic spectrum?

a)

Ling-Waves

b)

Gamma Rays

c)

Visible Light

d)

X-Rays

20.
The process whereby plants capture energy and make complex molecules is
a)
chemosynthesis
b)
cell respiration
c)
photosynthesis
d)
homeostasis
21.
What gas does the process of photosynthesis release into the atmosphere?
a)
oxygen
b)
carbon dioxide
c)
water
d)
nitrogen
22.
How do leaves help plants?
a)
They help hold the plant up.
b)
They take in water from the soil.
c)
They help make food through photosynthesis.
d)
They help make seeds.
23.
How do plants gets their food?
a)
they eat other animals
b)
make their own food
c)
they don't need food
d)
other living things bring them their food