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Cell respiration practice test

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.

What are the reactants in cell respiration?

a)

water, carbon dioxide, light

b)

oxygen, sugar

c)

sugar, water, carbon dioxide

2.

What is the energy that is produced in cell respiration?

a)

ADP

b)

Sugar

c)

ATP

3.

Where does Kreb's Cycle occur?

a)

mitochondria inner membrane

b)

mitochondria matrix

c)

cytoplasm

4.

The electron transport chain occurs where?

a)

mitochondria matrix

b)

mitochondria inner membrane

c)

cytoplasm

5.

The CO2 you breathe out comes out of which process?

a)

Glycolysis

b)

lactic acid fermentation

c)

Kreb's Cycle

6.
After the Krebs Cycle only a small portion of the energy of glucose has been converted to ATP. At this point the majority of usable energy is contained in
a)
NADH and FADH2
b)
Carbon Dioxide 
c)
Acetyl-CoA
d)
Citrate
7.
NADH and FADH2 
a)
carry electrons to the ETC.
b)
bind with Acetyl CoA.
c)
supply energy for the cell.
d)
make water.
8.
Which of the following is not an end product of the Kreb's cycle?
a)
FADH2
b)
CO2
c)
pyruvate
d)
ATP
9.
What enzyme in the ETC is responsible for generating the ATP molecules?
a)
acetyl-CoA
b)
ATP synthase
c)
hexokinase
d)
none of the above
10.

What are the products of Glycolysis?

a)

2 NADH

1 ATP

2 Pyruvates

b)

2 NADH

2 FADH2

2ATPs

2 Pyruvates

c)

2 NADH

2 ATPs

2 Pyruvate

11.

What are the products of The Kreb Cycle?

a)

NADH

b)

FADH2

c)

CO2

d)

All of the above

12.

Label the Diagram of the first stage of aerobic cellular respiration:

a)

Glucose

b)

2 Pyruvate

c)

Glycolysis

d)

2 ATP

1
2
3
4
1)
2)
3)
4)
13.

Label the Diagram of the second and third stage of aerobic cellular respiration:

a)

32-34 ATP

b)

Krebs Cycle

c)

Electron Transport Chain

d)

2 ATP

1
2
3
4
1)
2)
3)
4)
14.

Identify the energy carrier's in #1 & 2

a)

ATP & ADP

b)

NADH & FADH2

c)

GTP & GDP

15.

Identify the ion #3

a)

O2

b)

H2O

c)

H+

16.

Identify #5

a)

Inner membrane space

b)

Matrix

c)

Cytoplasm

d)

ATP Synthase

17.

Identify #6

a)

Inner membrane space

b)

Matrix

c)

Cytoplasm

d)

ATP Synthase

18.

Identify #7

a)

Inner membrane space

b)

Matrix

c)

Cytoplasm

d)

ATP Synthase

19.

Which of the following is a true statement regarding aerobic respiration and fermentation? Select all that apply.

a)

Both aerobic respiration and fermentation create energy.

b)

All cells must use some form of respiration to make energy

c)

Aerobic respiration creates more ATP than fermentation.

d)

Fermentation uses oxygen and aerobic respiration does not.

20.

What are the products of cell respiration?

a)

water, light, and sugar

b)

water, carbon dioxide, ATP

c)

oxygen, water, sugar

21.

Photosynthesis _________ the energy that cell respiration ______.

a)

builds ; breaks

b)

breaks ; build

c)

eats ; builds

22.

Plants can only go through photosynthesis not respiration.

a)

True

b)

False

23.

When do humans/animals do anaerobic respiration?

a)

all the time because it is the best way to release energy (ATP)

b)

only at night

c)

only during the day

d)

when there is less oxygen available

24.
What is the correct equation for cellular respiration?
a)
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
b)
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
c)
6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
d)
6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
25.
Glucose is broken down during which process
a)
Krebs cycle
b)
Calvin cycle
c)
Glycolysis
d)
Photosynthesis
26.
What is the net gain of ATP during glycolysis?
a)
1
b)
2
c)
3
d)
4
27.
This is the number of ATP molecules that are made from the breakdown of one glucose molecule during cellular respiration.
a)
2
b)
24
c)
38
d)
45
28.
What is cellular respiration
a)
A series of chemical reactions 
b)
Anaerobic
c)
Process of cells making ATP by breaking down compounds like glucose
d)
Aerobic
29.
In glycolysis, glucose is converted into two molecules of _____. 
a)
citric acid
b)
oxaloacetic acid
c)
pyruvic acid
d)
Acetyl CoA
30.
Which step of cellular respiration makes the most ATP?
a)
Glycolysis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Light Dependent Reactions
31.
What is a waste product that is released during the Kreb's Cycle?
a)
Oxygen
b)
Carbon Dioxide
c)
Water
d)
ATP
32.
How are cellular respiration and photosynthesis related, in terms of energy?
a)
The energy captured in photosynthesis is used to power cellular respiration.
b)
The energy transformed in cellular respiration is used to power photosynthesis.
c)
Photosynthesis and respiration perform the same task in terms of energy transformation.
d)
Energy is not involved in either photosynthesis or cellular respiration.
33.

What is the byproduct of anaerobic respiration in humans, produced when muscles contract forcefully and oxygen supply is limited?

a)

A) Lactate

b)

B) Glucose

c)

C) Ethanol

d)

D) Carbon dioxide

34.

What is the series of chemical reactions that further breaks down pyruvate and generates ATP and electron carriers?

a)

A) Fermentation

b)

B) Glycolysis

c)

C) Krebs cycle

d)

D) Oxidative phosphorylation

35.

What is the final stage of aerobic respiration, where electron carriers donate their electrons to an electron transport chain, leading to the production of a large amount of ATP?

a)

A) Fermentation

b)

B) Glycolysis

c)

C) Krebs cycle

d)

D) Oxidative phosphorylation

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