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Review Chapter 7: Cellular Respiration

Total questions: 94

Worksheet time: 1hrs 9mins

Name
Class
Date
1.
Where does glycolysis take place in cells?
a)
Cytoplasm
b)
Mitochondrion
c)
Endoplasmic Reticulum
d)
Ribosomes
2.
The first step of glycolysis results in the formation of:
a)
Glucose-6-Phosphate
b)
Fructose-6-Phosphate
c)
ATP
d)
1,6 Bis-PhosphoGlycerate
3.
Glycolysis results in the net gain of:
a)
2 ATP
b)
4 ATP
c)
4 NADH
d)
2 Acetyl CoA
4.
Glycolysis results in the total production of:
a)
2 ATP
b)
4 ATP
c)
4 NADH
d)
2 Acetyl CoA
5.
If Fructose-1,6-BisPhosphate is put through glycolysis the net result would be:
a)
2 ATP
b)
4 ATP
c)
4 NADH
d)
2 FADH2
6.
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
7.
Which is not part of the net products of Glycolysis?
a)
2 ATP
b)
2 NADH
c)
2 Pyruvate
d)
2 CO2
8.
Glycolysis occurs during aerobic or anaerobic conditions.
a)
True
b)
False
9.
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
10.
Which of the following is not a requirement for glycolysis?
a)
Oxygen
b)
ATP
c)
NAD+
d)
Glucose
11.
Which of the following is not a product of glycolysis?
a)
FADH2
b)
NADH
c)
ATP
d)
Pyruvate
12.
NADH is produced by the oxidation of:
a)
G3P
b)
DHAP
c)
PEP
d)
1,3 BPG
13.
Which molecule is an isomer of Glyceraldehyde-3-Phosphate (G3P)?
a)
DHAP
b)
PEP
c)
Pyruvic Acid
d)
1,3 BPG
14.
The first step in getting energy in the cell by breaking down glucose is known as
a)
the Krebs cycle
b)
electron transport
c)
fermentation
d)
glycolysis
15.
What is the starting molecule for glycolysis?
a)
Glucose
b)
ADP
c)
Oxygen
d)
Pyruvic Acid
16.
Glycolysis requires
a)
ATP
b)
Oxygen
c)
sunlight
d)
NADP+
17.
In glycolysis, glucose is converted into two molecules of _____. 
a)
citric acid
b)
oxaloacetic acid
c)
pyruvic acid
d)
Acetyl CoA
18.
What is Anaerobic Respiration?
a)
process of producing energy without oxygen.
b)
process of producing energy with oxygen.
19.
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
20.
This process releases chemical energy from sugars and other carbon-based molecules to make ATP when oxygen is present.
a)
photosynthesis
b)
light-independent reaction
c)
cellular respiration
d)
light-dependent reaction
21.
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
22.
Which molecule isn't an energy carrier?
a)
FADH2
b)
NADH
c)
oxygen
d)
ATP
23.

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

24.

Which enzyme reduces NAD+ to NADH?

a)

Enolase

b)

Adolase

c)

Phosphoglucoisomerase

d)

Dehydrogenase

25.

Glycolysis is a metabolic pathways that

I. Produces ATP

II. Produces NAD+

III. Produces pyruvate

IV. Occurs in cytoplasm

a)

I, II, III

b)

I, II, IV

c)

I, III, IV

d)

I, II, III, IV

26.

Phosphorylation on glucose will activate the glucose molecule.

a)

True

b)

False

27.

________ molecules of ATPs are invested and total ________ molecules of ATPs are formed in the end of glycolysis.

a)

One; two

b)

Two; four

c)

Two; two

d)

Four; four

28.

NAD+ is regenerated in order to sustain glycolysis in anaerobic condition.

a)

True

b)

False

29.
NADH is produced by the oxidation of:
a)
G3P
b)
DHAP
c)
PEP
d)
1,3 BPG
30.
Which molecule is an isomer of Glyceraldehyde-3-Phosphate (G3P)?
a)
DHAP
b)
PEP
c)
Pyruvic Acid
d)
1,3 BPG
31.

The end product of glycolysis are two molecules of pyruvate. How many carbons are in a pyruvate molecule?

(a)  

32.

Why does the cell break down the glucose molecule in several steps instead of all at once?

a)

So that it can harvest the energy from the molecule more efficiently.

b)

Because the glucose is too complex to break apart in a single step.

c)

Because the process of cellular respiration has evolved to become more complex over time.

d)

It does happen all at once. We just use steps to help us understand what's happening.

33.

Why is glycolysis considered to be one of the traits found in LUCA the very earliest life forms and cellular ancestors to all current life on earth? Mark all that apply

a)

It takes place in all types of cells including procaryotes

b)

It takes place in the cytoplasm and does not require organelles

c)

The ability to break down fuel for energy is a requirement for all forms of life

d)

It is the first step in cellular respiration and was the foundation that the more complex process was built on.

34.
The "regenerator" of the Krebs Cycle is:
a)
Oxaloacetate
b)
Acetyl-CoA
c)
Citrate
d)
α-Ketoglutarate
35.
Before entering Krebs Cycle, pyruvate is:
a)
Oxidized
b)
Reduced
c)
Isomerized to Acetyl-CoA
d)
Phosphorylated
36.
The number of ATP molecules produced out of Krebs Cycle is:
a)
2
b)
3
c)
4
d)
0
37.
How many FADH2 molecules are produced by 1 molecule of glucose?
a)
1
b)
2
c)
3
d)
4
38.
How many FADH2 molecules are produced by 1 turn of the Krebs Cycle?
a)
1
b)
2
c)
3
d)
4
39.
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
a)
2
b)
3
c)
4
d)
6
40.

Which of the following is not a requirement for the Krebs Cycle?

a)

NAD+

b)

FAD+

c)

Oxygen

d)

Pyruvate

41.
How many CO2 molecules are produced by the Krebs Cycle for a molecule of glucose?
a)
2
b)
4
c)
6
d)
3
42.
After Krebs Cycle, how many Carbon atoms from the original glucose molecule remain?
a)
0
b)
1
c)
3
d)
2
43.
Krebs Cycle takes place in the:
a)
Cytoplasm
b)
Matrix
c)
Ribsome
d)
InterMembrane Space
44.
Folds in the mitochondrion are called:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
45.
The inner most interior of the mitochondrion is called the:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
46.
Krebs Cycle is part of_______________ respiration.
a)
Aerobic
b)
Anaerobic
47.
Prior to entering the Krebs Cycle, each pyruvate molecule loses electrons, hydrogen ions, and a carbon, forming an energy-rich molecule of
a)
Acetyl-CoA
b)
Citrate
c)
Oxaloacetate
d)
Malate
48.
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
49.
How many ATP molecules are made from 1 NADH?
a)
1
b)
2
c)
3
d)
4
50.
How many H+ are pumped out of the matrix from 1 NADH?
a)
1
b)
2
c)
3
d)
4
51.
How many H+ are pumped out of the matrix from 1 FADH2?
a)
1
b)
2
c)
3
d)
4
52.
How many ATP molecules are made from 1 FADH2?
a)
1
b)
2
c)
3
d)
4
53.
Protons are pumped out of the _________ in the ETC.
a)
Matrix
b)
Cristae
c)
InterMembrane Space
d)
Mitochondrion
54.
The movement of H+ into the InterMembrane Space causes a ________ in pH.
a)
Rise
b)
Drop
55.
H+ come back into the matrix because of:
a)
Magic
b)
Facilitated Diffusion
c)
Diffusion
d)
Osmosis
56.
If a hole was created in the inner mitochondrial membrane the result would be _________ ATP created from the ETC.
a)
Less
b)
More
57.
The protein pumps in the ETC are arranged in order of ____________ electronegativity.
a)
Increasing
b)
Decreasing
58.
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
59.

Electron transport helps establish a _____ that powers ATP production.

a)

proton gradient

b)

vacuole

c)

peroxisome

d)

power vault

60.

The final electron acceptor in electron transport chain is

a)

NAD+

b)

FAD

c)

Oxygen

d)

Water

61.

The effect of increased levels of hydrogen ions in the intermembrane space of the mitochondria is

a)

Increase ATP production

b)

Decreased levels of oxidative phosphorylation

c)

Increased levels of water in intermembrane space

d)

Decreased levels of chemiosmosis

62.

Where does oxidative phosphorylation take place?

a)

Cytosol

b)

Matrix of mitochondria

c)

Innermembrane of mitochondria

d)

Intermembrane space of mitochondria

63.

What does FADH2 and NADH bring to the electron transport chain?

a)

Oxygen

b)

Water

c)

Electron

d)

ATP

64.
ATP molecules are made by this process during the ETC.
a)
Tinkerbell
b)
Substrate Level Phosphorylation
c)
Oxidative Phosphorylation
d)
Photo-phosphorylation
65.

Which of the following statements are TRUE about the process that occurs in cristae?

I ATP is synthesized by ATP synthase on the inner membrane of mitochondrion

II FADH2 transfers its hydrogen atoms to Citrate

III Formation of water molecule

IV Production of ATP in the electron transport chain is called oxidative phosphorylation

a)

I, II and III

b)

I, II and IV

c)

I, III and IV

d)

I, II, III and IV

66.

As electrons travel down the electron transport chain, they release

a)

ADP

b)

Energy

c)

ATP

d)

Hydrogen ion

67.

In the absence of oxygen, ____ follows glycolysis.

a)

the link reaction

b)

the citric acid cycle

c)

fermentation

d)

the calvin cycle

68.

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

a)

foldings

b)

ATP synthase

c)

protein channels

69.

ATP synthesis by ATP synthase is driven by

a)

H+ movement

b)

electron movement

c)

NADH movement

d)

FADH2 movement

70.

What are the final products of oxidative phosphorylation? (Pick more than 1)

a)

NADH

b)

ATP

c)

CO2

d)

H2O

71.

If the ETC was blocked by cyanide what would happen?

a)

the mitochondrion would over heat

b)

excessive NAD+ would build up in the cells and blood

c)

oxygen levels would decrease

d)

NADH and FADH2 would be in high levels

72.

Which of the following is not true?

Cellular respiration...

a)

happens only in animals.

b)

results in 36-38 ATP.

c)

converts food to energy.

d)

consists of glycolysis, citric acid cycle, oxidative phosphorylation.

73.
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?
a)
Only species Y is aerobic.
b)
Only species Y is anaerobic
c)
Both species X and Y are aerobic.
d)
Both species X and Y are anaerobic.
74.

Which of the following statements are TRUE about the process that occurs in cristae?

I ATP is synthesized by ATP synthase on the inner membrane of mitochondrion

II FADH2 transfers its hydrogen atoms to Citrate

III Formation of water molecule

IV Production of ATP in the electron transport chain is called oxidative phosphorylation

a)

I, II and III

b)

I, II and IV

c)

I, III and IV

d)

I, II, III and IV

75.

 What part of respiration is absent during anaerobic respiration?

a)

Carbon ethanol

b)

Ethanol

c)

Oxygen

d)

Pyruvate

76.

Which process is the first stage of anaerobic respiration?

a)

Oxidative Phosporylation

b)

Glycolysis

c)

Fermentation

d)

Citric Acid Cycle

77.

Which of the following is a product of a fermentation reaction?

a)

pyruvate

b)

glucose

c)

citric acid

d)

Ethanol

78.

Occurs when single-celled organism break down pyruvate into ethanol.

a)

Fermentation

b)

Alcohol fermentation

c)

Lactic acid

d)

Anaerobic respiration

79.

A single-celled eukaryotes involved in the process of alcohol fermentation

a)

Zymases

b)

Yeast

c)

ATP

d)

Pyruvate

80.

 It is an electron carrier that is generated by fermentation

a)

NAD+

b)

ATP

c)

Ethanol

d)

NADH

81.

A by-product of glycolysis and forms when your body breaks down glucose for energy when oxygen is low.

a)

Cytosol

b)

Lactic Acid

c)

Carbon dioxide

d)

Oxygen

82.
Why is yeast used to bake bread? 
a)
The waste gas, CO2, makes bread rise
b)
The alcohol produced makes bread dangerous
c)
The yeast consumes O2, causing bread to rise
83.
What cells in the body may undergo lactic acid fermentation during exercise? 
a)
Muscle cells
b)
Fat cells
c)
Liver cells
d)
Skin cells
84.

Anaerobic respiration has the electron ______ other than ______

a)

donor_____oxygen

b)

donor___CO2

c)

Acceptor______ oxygen

d)

Acceptor ____ oxygen

85.

What is the electron acceptor for anaerobic respiration?

a)

inorganic substances

b)

oxygen

c)

ATP

d)

NAD

86.

Anaerobic respiration does not undergo Kreb cycle whilst fermentation undergo kreb cycle

a)

True

b)

False

87.

Microorganism undergo anaerobic respirations are

a)

photoheterotrophs

b)

chemoheterotrophs

c)

photoautotrophs

88.

Anaerobic respiration produces methane via methanogenesis, due to hydrogen being the electron donor, and the electron acceptor is?

a)

water

b)

FeS2

c)

H2SO4

d)

CO2

89.

ATP generation of anaerobic respiration are lesser than fermentation

a)

True

b)

False

90.

What does beta-oxidation do?

a)

A. Break down carbohydrates.

b)

B. Break down proteins.

c)

C. Break down fatty acids.

d)

D. Break down fatty acids and proteins.

e)

E. Break down carbohydrates and proteins.

91.

How many ATP would be produced from the beta oxidation of an 8 carbon fatty acid chain?

a)

49 ATP

b)

52 ATP

c)

38 ATP

d)

107 ATP

92.

Compared to the 6-carbon sugar Glucose, a 6-carbon fatty acid chain contains approximately 20%​​ (a)   energy. This means that animals which store their energy in​ (b)   , will on average need​ (c)   mass than plants which use​ (d)   for their energy storage.

Choose from the below words
more
fats
less
cellulose
93.

If oxygen is available, most eukaryotic cells will undergo​ (a)   , however, since no oxygen was available to the very first prokaryotic cells, it is likely they instead used a type of​ (b)   with an ​ (c)   like Sulfur or Carbon Dioxide acting as the ​ (d)   .

Choose from the below words
aerobic respiration
anaerobic respiration
inorganic molecule
electron receptor
94.

There are several different metabolic pathways that cells can use to generate ATP besides the oxidation of glucose. Proteins can be broken down into​ (a)   and the nitrogen group removed in a process called​ (b)   . The carbon backbones will then either undergo glycolysis or be prepared for the​ (c)   . Fats can be broken down in a process called​ (d)   and then also sent to the krebs cycle. In almost all cases however, a key molecule for the metabolism of biomolecules and the production of ATP is the two carbon molecule​ (e)   .

Choose from the below words
amino acids
deamination
Krebs Cycle
beta oxidation
Acetyl Co-A

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