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Cellular Respiration Review

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

Which is a product of glycolysis?

a)

2 molecules of pyruvic acid

b)

1 molecule of glucose

c)

NAD+

d)

oxygen

2.

Where does the pyruvic acid produced by glycolysis go next?

a)

the Calvin Cycle

b)

the electron transport chain

c)

the Krebs Cycle

d)

the link reaction

3.

Glycolysis has a net gain of how many ATP molecules?

a)

2

b)

4

c)

6

4.

How many ATP molecules are required to start glycolysis?

a)

Four

b)

Three

c)

Two

d)

One

5.
Where does glycolysis take place in cells?
a)
Cytoplasm
b)
Mitochondrion
c)
Endoplasmic Reticulum
d)
Ribosomes
6.
The number of ATP molecules produced out of Krebs Cycle is:
a)
2
b)
3
c)
4
d)
0
7.
Krebs Cycle takes place in the:
a)
Cytoplasm
b)

Mitochondrial Matrix

c)
Ribsome
d)

InterMembrane Space of the Mitochondria

8.
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
9.

The waste product produced during the Krebs cycle is...

a)

Oxygen

b)

Water

c)

Carbon Dioxide

d)

ATP

10.

What is the final product of the oxidative phosphorylation (ETC & chemiosmosis) ?

a)

ATP

b)

NADH

c)

FADH2

d)

ADP

11.

Which of the following gets pumped into the intermembrane space?

a)

FADH2

b)

O2

c)

H+

d)

NAD+

12.

As electrons travel down the electron transport chain, they release

a)

ADP

b)

Energy

c)

ATP

d)

Hydrogen ion

13.

The final electron acceptor in electron transport chain is

a)

NAD+

b)

FAD

c)

Oxygen

d)

Water

14.

Where does oxidative phosphorylation take place?

a)

Cytosol

b)

Matrix of mitochondria

c)

Innermembrane of mitochondria

d)

Intermembrane space of mitochondria

15.

What are the two parts of oxidative phosphorylation?

a)

glycolysis

b)

Krebs cycle

c)

electron transport chain

d)

chemiosmosis

16.

ATP synthesis by ATP synthase is driven by

a)

H+ movement

b)

electron movement

c)

NADH movement

d)

FADH2 movement

17.

Please indicate the correct equation(s) for Cellular Respiration. (2 answers)

a)

Glucose + Oxygen --> Carbon Dioxide + Water + Energy

b)

C6H12O6 + O2 --> CO2 + H2O + ATP

c)

Carbon Dioxide + Water + Energy --> Glucose + Oxygen

d)

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

18.
Fermentation occurs in the cell's 
a)
cytoplasm
b)
nucleus
c)
cell membrane
d)
cristae
19.
What is a disadvantage of fermentation as a process? 
a)
It produces too much ATP
b)
It only produces 2 ATP
c)
It occurs in the absence of oxygen
d)
It is only for quick bursts of energy
20.
What cells in the body may undergo lactic acid fermentation during exercise? 
a)
Muscle cells
b)
Fat cells
c)
Liver cells
d)
Skin cells
21.
Cellular respiration is called an aerobic process because it requires
a)
light
b)
exercise
c)
oxygen
d)
glucose
22.
During both alcoholic and lactic acid fermentation,
a)
NAD+ is regenerated, allowing glycolysis to continue.
b)
glucose is split into 3 pyruvic acid molecules.
c)
oxygen is required.
d)
carbon dioxide is produced.
23.

Which portion of the ATP molecule breaks off and releases energy?

a)

A

b)

B

c)

C

d)

D

24.

______________ reactions take in energy; _______________ release energy.

a)

Exergonic; energetic

b)

Exergonic, endergonic

c)

Endergonic; exergonic

d)

endergonic; energetic

25.

___________ is losing electrons; ____________ is gaining electrons.

a)

Oxidation; reduction

b)

Reduction; oxidation

c)

Anions; cations

d)

Oxidation; ionization

26.

Which molecule is the starting substrate for the Krebs cycle?

a)

Pyruvate

b)

Acetyl-CoA

c)

ATP

d)

NADH

27.

A decrease in the amount of oxygen available will....

a)

not have an effect on the amount of energy produced during cellular respiration

b)

decrease the amount of glucose produced during cellular respiration

c)

cause the amount of water produced during cellular respiration to increase

d)

decrease the amount of energy produced during cellular respiration

28.

What is the correct order of processes in Aerobic Respiration?

a)

Glycolysis, Chemiosmosis, Kreb's Cycle, Electron Transport Chain

b)

Glycolysis, Chemiosmosis, Electron Transport Chain, Kreb's Cycle

c)

Chemiosmosis, Electron Transport Chain, Kreb's Cycle, Glycolysis

d)

Glycolysis, Kreb's Cycle, Electron Transport Chain, Chemiosmosis

29.

How many times does the Kreb's Cycle "turn" per glucose?

a)

1

b)

2

c)

3

d)

6

30.

How many times does the Kreb's Cycle "turn" per glucose?

a)

1

b)

2

c)

3

d)

6

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