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photosynthesis and the carbon cycle

Total questions: 20

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

which of the following is a reactant to photosynthesis?

a)

Oxygen

b)

Carbohydrates

c)

Glucose

d)

Water

2.

Why are plants considered autotrophs

a)

They make their own food

b)

They provide food for others

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.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

6.

Select all that are raw materials for Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

7.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

8.
Which choice correctly shows the gases that enter and exit plants during photosynthesis?
a)
Enter: Oxygen
Exit: Carbon dioxide
b)
Enter: Water vapor
Exit: Glucose
c)
Enter: Carbon dioxide
Exit: Oxygen
d)
Enter: Light
Exit: Water vapor
9.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

light + carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen + light

c)

oxygen + light + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Light+ Sugar

10.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
11.

What is the pigment in chloroplasts that performs photosynthesis?

a)

Chlorosynthesis

b)

Chlorophyll

c)

Chloroplast

d)

Green

12.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
13.

The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called _____________.

a)

the Carbon Cycle

b)

the Oxygen Cycle

c)

the Carbon dioxide Cycle

d)

the Water Cycle

14.

Since the mid- 1800's, _____________ activity has significantly altered the carbon cycle.

a)

animal

b)

plant

c)

unknown

d)

human

15.

What does NOT produce atmospheric carbon dioxide?

a)

Photosynthesis

b)

Burning Fossil Fuels

c)

Animal respiration

d)

Anything living in the ocean.

16.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
17.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
18.
Both plants and animals use glucose for energy.
a)
True
b)
False
19.

The main source of energy for all life comes from _____.

a)

the Earth

b)

the sun

c)

the moon

d)

the food we eat/make

20.

Photosynthesis occurs in the

a)

Chloroplasts

b)

Cell walls

c)

Cytoplasm

d)

Mitochondria