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Worksheets

Unit 3

Total questions: 27

Worksheet time: 50mins

Name
Class
Date
1.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO+ light + H2O --> O+ Sugar
b)
CO+ sugar + H2O --> O+ light
c)
O2 + light + H2O --> CO+ Sugar
d)
CO+ O2 + H2O --> Light+ Sugar
2.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

3.
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
4.
Which of the following is an example of an AUTOTROPH?
a)
Appletree
b)
Dog
c)
Mushroom
d)
Human
5.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
6.

What is the pigment in chloroplasts that performs photosynthesis?

a)

Chlorosynthesis

b)

Chlorophyll

c)

Chloroplast

d)

Green

7.
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
8.
Glucose is a ...
a)
sugar
b)
carbohydrate
c)
source of quick energy
d)
all are correct
9.
The formula for glucose is...
a)
C12 H22 O11
b)
NaCl
c)
NaOH
d)
C6 H12 O6
10.

The ___ is the cell part (organelle) inside cells where cellular respiration happens.

a)

mitochondria

b)

chloroplast

c)

nucleus

d)

ribosome

11.

In a cell, the mitochondria is like the ___.

a)

powerhouse

b)

kitchen

c)

control center

d)

highway system

12.

What two things are needed for cellular respiration to happen in a cell?

a)

glucose & oxygen

b)

water & carbon dioxide

c)

oxygen & carbon dioxide

d)

glucose & water

13.

The primary purpose of cellular respiration is to produce ___.

a)

ATP

b)

sugar

c)

glucose

d)

heat

14.

Both ___ are leftover as waste products after cellular respiration.

a)

water & carbon dioxide

b)

oxygen & glucose

c)

carbon dioxide & oxygen

d)

water & oxygen

15.

Cellular respiration and photosynthesis are ___.

a)

exact opposites

b)

basically the same

c)

not related in any way

d)

not important for life

16.

Which of the following is the chemical equation for cellular respiration?

a)

C₆H₁₂O₆ + O₂ → ATP + CO₂ + H₂O

b)

CO₂ + H₂O → ATP + C₆H₁₂O₆ + O₂

c)

C₆H₁₂O₆ + H₂O → ATP + CO₂ + O₂

d)

C₆H₁₂O₆ + CO₂ → ATP + H₂O + O₂

17.

The process that requires oxygen is called...

a)

anaerobic respiration

b)

aerobic respiration

c)

respiration

18.

Where does anaerobic respiration take place?

a)

cytoplasm

b)

mitochondria

c)

cell

19.

Glycolysis goes through...

a)

aerobic respiration

b)

anaerobic respiration

c)

both

20.

The krebs cycle and the ETC go through...

a)

aerobic respiration

b)

anaerobic respiration

c)

both

21.
How is energy released from ATP?
a)
adding a phosphate
b)
making a new bond
c)
removing the 3rd phosphate
d)
adding a protein
22.
What are the three stages that make up cellular respiration?
a)
light reactions, calvin cycle and electron transport
b)
glycolysis, kreb's cycle and Calvin cycle
c)
Glycolysis, Kreb's cycle and electron transport
d)
Light Reactions, Calvin Cycle and Glycolysis
23.
Using the figure, which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
B and C
c)
C and D
d)
all of the above
24.
Which structures shown in the Figure make up the ADP molecule?
a)
A and B
b)
A, B and C
c)
A, B, C, and D
d)
C and D
25.

What is the process through which the majority of ATP is produced?

a)

Photosynthesis

b)

Respiration

c)

Exercise

d)

Nucleotides

26.

What is used or released when ATP becomes ADP?

a)

phosphate released / energy used

b)

phosphate used / energy released

c)

phosphate released / energy released

d)

phosphate used / energy released

27.

What is ADP used for?

a)

It is recharged with a phosphate and energy.

b)

As a backbone for DNA.

c)

Special cell actions that require large amounts of energy.

d)

Any cellular process requiring energy.