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Glycolysis - Fermentation - Oxidative Phosphorylation Review

Total questions: 62

Worksheet time: 34mins

Name
Class
Date
1.
Where does glycolysis take place in cells?
a)
Cytoplasm
b)
Mitochondrion
c)
Endoplasmic Reticulum
d)
Ribosomes
2.
Glycolysis results in the net gain of:
a)
2 ATP
b)
4 ATP
c)
4 NADH
d)
2 Acetyl CoA
3.
Glycolysis results in the total production of:
a)
2 ATP
b)
4 ATP
c)
4 NADH
d)
2 Acetyl CoA
4.
Which is not part of the net products of Glycolysis?
a)
2 ATP
b)
2 NADH
c)
2 Pyruvate
d)
2 CO2
5.

Glycolysis occurs during aerobic and anaerobic conditions.

a)

True

b)

False

6.
Which of the following is not a requirement for glycolysis?
a)
Oxygen
b)
ATP
c)
NAD+
d)
Glucose
7.
Which of the following is not a product of glycolysis?
a)
FADH2
b)
NADH
c)
ATP
d)
Pyruvate
8.

Which of the following is the correct chemical equation for Cellular Respiration?

a)

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

b)

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

c)

6CO2 + 6 H2O + Light Energy --> C6H12O6 + 6O2

d)

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

9.

What is always the first step in respiration?

a)

Fermentation

b)

Kreb's Cycle

c)

Electron Transport Chain

d)

Glycolysis

10.

Which type of Cellular Respiration occurs when oxygen is NOT present?

a)

Fermentation

b)

Anaerobic Respiration

c)

Aerobic Respiration

d)

Both Fermentation and Anaerobic Respiration

11.
In the final step of glycolysis ATP is made through the process of:
a)
Substrate Level Phosphorylation
b)
Oxidative Phosphorylation
c)
Photo-Phosphorylation
d)
RedOx Reactions
12.
Glucose enters cells and is committed to glycolysis with the addition of:
a)
PFK Enzymes
b)
-PO4 from ADP
c)
-PO4 from ATP
d)
Electrons from ATP
13.
What is the function of NAD+?
a)
It absorbs light
b)
It is an electron carrier
c)
It is a light-reflecting pigment
d)
It acts as long-term energy storage
14.
This molecule contains three phosphate groups
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
15.

The molecule that functions as the oxidizing agent (electron receptor) in a redox or oxidation-reduction reaction _____.

a)

gains electrons and gains potential energy

b)

loses electrons and loses potential energy

c)

gains electrons and loses potential energy

d)

loses electrons and gains potential energy

16.

Which is a product of glycolysis?

a)

2 molecules of pyruvic acid

b)

1 molecule of glucose

c)

NAD+

d)

oxygen

17.

Glycolysis requires oxygen

a)

True

b)

False

18.

Which of these is broken down into pyruvic acid?

a)

glucose

b)

oxygen

c)

water

19.

Anaerobic means

a)

with oxygen

b)

without oxygen

c)

to run for a long time

20.

What is the main function of glycolysis?

a)

To rearrange the glucose molecule to be broken down

b)

To split the glucose molecule to release energy

c)

To recreate acetyl CoA for the Krebs cycle

d)

To absorb and store energy in ATP molecules

21.

There are 10 steps in glycolysis, how many enzymes catalyze these steps?

a)

8

b)

9

c)

10

d)

11

22.

What are the products of glycolysis?

a)

2 ATP, 2 NADPH, 2 pyruvate

b)

2 ADP, 2 NADH, 2 pyruvate

c)

2 ATP, 2 NADH, 2 pyruvate

d)

2 ADP, 2 NADPH, 2 pyruvate

23.

How does glycolysis lead to ATP synthesis?

a)

Glucose provides the phosphate for ADP to synthesize ATP

b)

Glycolysis splits the glucose molecule to create G3P

c)

High energy electrons are stored in NADH for the ETC

d)

Acetyl CoA is synthesized for the Krebs cycle

24.

Justify that glycolysis evolved before oxygen was present in the atmosphere.

a)

Glycolysis does not require oxygen which represents that it evolved prior to free oxygen in the atmosphere

b)

Glycolysis does not take place in the mitochondria and thus does not require oxygen

c)

Glycolysis splits a glucose molecule into 2 pyruvate molecules which does not require oxygen

d)

Glycolysis takes place in all living organisms which means it evolved prior to free oxygen in the atmosphere

25.

Justify that glycolysis evolved prior to the mitochondria.

a)

Glycolysis takes place in the cytosol

b)

Glycolysis does not require a membrane which represents that it evolved prior to membrane bound organelles

c)

Glycolysis has instructions in the nuclear DNA

d)

Glycolysis does not require mitochondrial DNA which represents that it evolved prior to membrane bound organelles

26.

A substance that loses an electron has been...

a)

reduced

b)

oxidized

c)

negatived

d)

positived

27.

Which of the following organisms undergo cellular respiration?

a)

Animals

b)

Plants

c)

Fungi

d)

Protists

28.

ADP is converted into ATP by...

a)

An enzyme removing a phosphate group.

b)

An enzyme adding a phosphate group.

c)

An enzyme changing the charge of ADP.

d)

The spontaneous addition of a phosphate group.

29.
Which of the following molecules is NOT a byproduct of cellular respiration? 
a)
CO2
b)
Heat
c)
H2O
d)
ATP
30.
If ADP is phosphorylated then what is this indicating in the reaction? 
a)
ADP is forming into ATP
b)
ADP is becoming AMP
c)
ADP is being used to power other reactions
d)
ADP is being created by the reaction
31.
Why is ATP considered the most significant energy carrying molecule? 
a)
It's delta G is negative. 
b)
ATP has different bond energy between its phosphate groups. 
c)
ATP can hold large amounts of energy between all of its bonds. 
d)
ATP's positive delta G contributes to the large amounts of energy between its 3rd and 2nd phosphate groups. 
32.
Which process least amount of ATP in cells? 
a)
Glycolysis
b)
Citric Acid cycle
c)
Lactic acid Fermentation
d)
Pyruvate Oxidation
33.
Which molecule is not an important molecule regarding Cellular Respiration? 
a)
H2O
b)
NADH
c)
O2
d)
CO2
34.
When NADH is reduced and oxidized, which response best describes what is lost or gained? 
a)
only Electrons 
b)
2 stable Hydrogen atoms 
c)
Pair of electrons 
d)
2 ATP 
35.
What is the main job of the electron carriers in cellular respiration? 
a)
Transport electrons and hydrogen atoms to the electron transport chain 
b)
Capture energy throughout the process of cellular respiration
c)
Provide the reactants for the process of cellular respiration
d)
Pump positive hydrogen ions and shuttle electrons across the electron transport chain and contribute to chemiosmosis
36.

This process uses NADH and FADH2 to produce ATP

a)

fermentation

b)

glycolysis

c)

krebs cycle

d)

oxidative phosphorylation

37.

This process uses NADH and FADH2 to produce ATP

a)

fermentation

b)

glycolysis

c)

krebs cycle

d)

oxidative phosphorylation

38.

Which of the following is necessary for oxidative phosporylation to occur?

a)

ATP

b)

carbon dioxide

c)

oxygen

d)

actic acid

39.

What are the final products of oxidative phosphorylation?

a)

NADH

b)

ATP

c)

CO2

d)

H2O

40.
If ADP is phosphorylated then what is this indicating in the reaction? 
a)
ADP is forming into ATP
b)
ADP is becoming AMP
c)
ADP is being used to power other reactions
d)
ADP is being created by the reaction
41.
The ETC makes water.  To make this water, where do the hydrogen atoms come from?
a)
glucose
b)
pyruvate
c)
NADH and FADH2
d)
oxygen
42.
In the ETC, what is the last electron acceptor?
a)
water
b)
oxygen
c)
NAD
d)
FAD
43.

Energy released by the electron transport chain is used to pump H+ ions into which location?

a)

Cytosol

b)

Mitochondrial Outer Membrane

c)

Mitochondrial Inner Membrane

d)

Mitochondrial Intermembrane Space

44.

Where is ATP synthase located in the mitochondrion?

a)

cytosol

b)

electron transport chain

c)

outer mitochondria membrane

d)

inner mitochondria membrane

45.

As electrons travel down the electron transport chain, they release

a)

ADP

b)

Energy

c)

ATP

d)

Hydrogen ion

46.

H+ move down their concentration gradient by ___________ back into the matrix.

a)

osmosis

b)

facilitated diffussion

c)

simple diffusion

d)

active transport

47.

ATP synthase synthesis ATP and release ATP into

a)

innermembrane of mitochonndria

b)

matrix of mitochondria

c)

intermembrane space of mitochondria

d)

outermembrane of mitochondria

48.

How many ATP produced for each NADH that enter the electron transport chain from Kreb's cycle?

a)

1

b)

2

c)

3

d)

4

49.

How many ATP produced for each FADH2 that enter the electron transport chain from Kreb's cycle?

a)

1

b)

2

c)

3

d)

4

50.
The process of using electrons to pump H+ to create an electrochemical gradient that must flow through a protein is called:
a)
Chemiosmosis
b)
Fantasia
c)
Induced Fit
d)
Electrolysis
51.

Chemiosmosis occurs as H+ ions move through ____ in the cristae, making ATP.

a)

foldings

b)

ATP synthase

c)

protein channels

52.

A poison which inhibits the activity of any cytochrome in the ETC will result in the following reaction:

a)

Excess ATP

b)

oxygen production

c)

Insufficient ATP

d)

water synthesis

53.

What are the two parts of oxidative phosphorylation?

a)

Glycolysis & Krebs cycle

b)

Krebs cycle & Electron transport chain

c)

Electron transport chain & Chemiosmosis

d)

Glycolysis & Chemiosmosis

54.

Where does oxidative phosphorylation take place?

a)

Chloroplast

b)

Mitochondrial cristae

c)

Mitochondrial matrix

d)

Cytosol

55.

Which direction are protons pumped during the electron transport chain?

a)

Into the mitochondrial matrix

b)

Into the intermembrane space

c)

Into the cytosol

d)

Into the thylakoid

56.

Which part of the cell will have the highest pH due to cellular respiration?

a)

Cytosol

b)

Mitochondrial matrix

c)

Intermembrane space

d)

Thylakoid

57.

How does the electron transport chain facilitate the synthesis of ATP?

a)

The ATP is synthesized at the end of the electron transport chain

b)

The ATP is synthesized by the protons combining with the oxygen in the electron transport chain

c)

The ATP is synthesized by the protons flowing down their concentration gradient after being pumped out by the ETC

d)

The ATP is synthesized by the ATP synthase found in the electron transport chain

58.

What is the function of decoupling oxidative phosphorylation in the electron transport chain?

a)

Generate heat to regulate body temperature in endotherms

b)

Generate heat to regulate body temperature in ectotherms

c)

Generate ATP to power cellular activity in cells

d)

Generate ATP to power activity in organisms

59.

What does the NADH and/or FADH2 that is brought to the electron transport chain come from?

a)

Glycolysis

b)

Krebs cycle

c)

Pyruvate oxidation

d)

Cytoplasmic reactions

60.

Where would you find an electron transport chain in a plant cell?

a)

Mitochondrial cristae

b)

Thylakoid membrane

c)

Endoplasmic reticulum

d)

Golgi bodies

61.

Describe what would happen if the mitochondrial inner membrane was ruptured.

a)

ATP synthesis would be inhibited

b)

ATP synthesis would be promoted

c)

The electron transport chain would increase in activity

d)

The electron transport chain would decrease in activity

62.

FUN FACT: How many ATPs are synthesized from the energy carried by NADH and FADH2 (on average)?

a)

1 NADH = 1 ATP

1 FADH2 = 1 ATP

b)

1 NADH = 2 ATP

1 FADH2 = 1 ATP

c)

1 NADH = 3 ATP

1 FADH2 = 2 ATP

d)

1 NADH = 2 ATP

1 FADH2 = 3 ATP

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