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Respiration

Total questions: 114

Worksheet time: 2hrs 34mins

Name
Class
Date
1.
Fermentation involves
a)
aerobic respiration
b)
anaerobic respiration 
2.
Lactic acid fermentation occurs in your muscles after a workout because your cells are struggling to get
a)
Glucose
b)
Sunlight
c)
Oxygen
d)
Water
3.
The process carried out by yeast that causes bread to rise is
a)
alcoholic fermentation
b)
lactic acid fermentation
c)
cellular respiration
d)
yeast mitosis
4.
How are lactic acid and alcoholic fermentation similar?
a)
They have the same products
b)
They have the same reactants
c)
They both require oxygen
d)
They occur in the same organisms
5.

Which of the following best explains the purpose of cell respiration?

a)

In cell respiration, sunlight is used to make sugar

b)

In cell respiration, sunlight is used to make ATP

c)

In cell respiration, glucose is used to make energy

d)

In cell respiration, oxygen is used to make sugar

6.

Which of the following are needed for cell respiration?

a)

Sunlight, water, carbon dioxide

b)

Glucose, oxygen

c)

Sunlight, water, oxygen

d)

Glucose, carbon dioxide

7.

Which of the following best explains the affect of cell respiration?

a)

Oxygen is released into the atmosphere

b)

Carbon dioxide is released into the atmosphere

c)

Glucose is released into the atmosphere

d)

ATP is released into the atmosphere

8.

Where in the cell does (aerobic) cell respiration occur?

a)

Chloroplast

b)

Mitochondria

c)

Vacuole

d)

Cytoplasm

9.
The mitochondria is responsible for ...
a)
photosynthesis
b)
anaerobic respiration
c)
aerobic respiration
d)
fermentation
10.

All living things do which of the following?

a)

Chemosynthesis

b)

Respiration (aerobic or anaerobic)

c)

photosynthesis

d)

all of the answers

11.
______________ produces the most ATP.
a)
photosnthesis
b)
aerobic respiration
c)
anaerobic respiration
d)
glycolysis
12.
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
13.
Where does the Krebs Cycle take place?
a)
mitochondria
b)
chloroplast
c)
cytoplasm
d)
nucleus
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.
The net gain of energy from glycolysis is
a)
8 ADP molecules
b)
4 ATP molecules
c)
3 pyruvic acid molecules
d)
2 ATP molecules
16.
Which of the following is not one of the steps of cellular respiration?
a)
Glycolysis
b)
Krebs (Citric Acid) Cycle
c)
Electron Transport Chain
d)
Calvin Cycle
17.
Which type of respiration is most efficient?
a)
Aerobic
b)
Anaerobic
18.
What is the waste energy from respiration given off as?
a)
Heat
b)
Light
c)
Sound
d)
Kinetic
19.
What happens to your breathing rate when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
20.
What are the products of cellular respiration?
a)
glucose, carbon dioxide, and ATP energy
b)
glucose and carbon dioxide
c)
carbon dioxide and water
d)
carbon dioxide, water, and ATP energy
21.
Cells use the energy stored in food to make
a)
ADP
b)
ATP
c)
Glucose
d)
Water
22.
The main purpose of Cellular Respiration is to
a)
make carbon dioxide
b)
make water
c)
make glucose
d)
make ATP
23.
When ATP is converted to ADP
a)
an oxygen atom is released
b)
energy is stored
c)
a phosphate group is released
d)
a bond is created
24.
Which has more energy?
a)
ATP
b)
ADP + Pi
25.
Fermentation...
a)
requires a ton of oxygen and makes little ATP.
b)
occurs without oxygen and produces a large amount of ATP.
c)
requires no oxygen and produces a minimal amount of ATP
26.

What is the net ATP gained in glycolysis per glucose?

a)

4 ATP

b)

0 ATP

c)

2 ATP

d)

32 ATP

27.

What is the name of the substrate left over at the end of glycolysis?

a)

Phosphoenolpyruvate (PEP)

b)

Pyruvate

c)

Citric Acid

d)

Fructose 1,6-Bisphosphate

28.

The substrate at the end of glycolysis undergoes 3 changes before entering the Krebs cycle. Which is NOT one of them?

a)

The addition of Coenzyme A

b)

The removal of carbon dioxide

c)

The formation of NADH

d)

The production of ATP

29.

Where do glycolysis and the Krebs cycle take place, respectively?

a)

The cytoplasm; the cytoplasm

b)

The mitochondria; the cytoplasm

c)

The cytoplasm; the mitochondria

d)

The mitochondria; the mitochondria

30.

In the Krebs cycle, how many carbons lost per turn (one spin around the cycle)?

a)

6

b)

4

c)

2

d)

3

31.

What is the name of the enzyme responsible for ATP production in the electron transport chain?

a)

Catalase

b)

ATP Synthase

c)

ATP Productase

d)

ATP Catabolase

32.

In the electron transport chain, protons are actively pumped against the gradient from __________ to __________.

a)

The cytoplasm to the mitochondria

b)

The mitochondria to the cytoplasm

c)

The mitochondrial inner membrane space to the mitochondrial matrix

d)

The mitochondrial matrix to the mitochondrial inner membrane space

33.

Where does glycolysis occur?

a)

Inner mitochondrial membrane

b)

Mitochondrial Matrix

c)

Cytosol/cytoplasm

d)

At a ribosome

34.
Where does ETC occur?
a)
Mitochondrial matrix
b)
Outer mitochondrial membrane
c)
Inner mitochondrial membrane
d)
Cytosol
35.
after strenuous exercise, a muscle cell would contain decreased amounts of ______ and increased amounts of ______ ____
a)
glucose ATP
b)
ATP glucose
c)
oxygen lactic acid
d)
lactic acid ATP
36.
Which of the following statements are false?
a)
Glycolysis can occur with or without oxygen
b)
Glycolysis is the first step in both anaerobic and aerobic respiration
c)
Glycolysis occurs in the mitochondria
d)
Glycolysis produces 2 ATP, 2 Pyruvates, and 2 NADH
37.
Which of these molecules is released during the Kreb's cycle
a)
nitrogen
b)
oxygen
c)
hydrogen sulfide
d)
Carbon Dioxide (CO2)
38.
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
39.
During chemiosmosis
a)
H+ ions serve as the final electron acceptor
b)
a concentration gradient is generated when H+ ions are passively transported from the matrix to the intermembrane space of the mitochondrion
c)
energy is released as H+ ions move freely across the mitochondrial membrane
d)
ATP is synthesized when H+ ions move through a channel in ATP synthase
40.
Which reactant is used as the final electron acceptor in cellular respiration?
a)
water
b)
carbon dioxide
c)
oxygen
d)
glucose
41.
The ATP made during fermentation is generated by which of the following?
a)
the electron transport chain
b)
substrate�level phosphorylation
c)
chemiosmosis
d)
oxidative phosphorylation
42.
Cellular respiration
a)
Exergonic
b)
Endergonic
43.
Which of the following is not a requirement for glycolysis?
a)
Oxygen
b)
ATP
c)
NAD+
d)
Glucose
44.
What is the starting molecule for glycolysis?
a)
Glucose
b)
ADP
c)
Oxygen
d)
Pyruvic Acid
45.
Glycolysis requires
a)
ATP
b)
Oxygen
c)
sunlight
d)
NADP+
46.
Glycolysis literally translates to:
a)
sugar-taking
b)
Glucose-making
c)
sugar-baking
d)
Glucose-breaking
47.
In glycolysis, glucose is converted into two molecules of _____. 
a)
citric acid
b)
oxaloacetic acid
c)
pyruvic acid
d)
Acetyl CoA
48.
This molecule contains three phosphate groups
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
49.
This molecule contains two phosphate groups
a)
ADP
b)
ATP
c)
Mitochondria
d)
Nucleus
50.
The energy in ATP is stored 
a)
in the bond between the second and third phosphate
b)
in the bond between the first and second phosphate
c)
in the bond between the adenosine and the first phosphate
d)
I like turtles
51.

In glycolysis, how many molecules of NADH are formed?

a)

1

b)

2

c)

3

d)

4

52.
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
53.
Which is not part of the net products of Glycolysis?
a)
2 ATP
b)
2 NADH
c)
2 Pyruvate
d)
2 CO2
54.
Which of the following is not a product of glycolysis?
a)
FADH2
b)
NADH
c)
ATP
d)
Pyruvate
55.
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
56.

Glycolysis requires ______ and glucose to start

a)

ATP

b)

water

c)

sunlight

d)

NADP+

57.
How many carbon atoms does each pyruvate feed into the Krebs Cycle?
a)
1
b)
2
c)
3
d)
4
58.
For every molecule of glucose, how many molecules of FADH2 are produced by the Krebs Cycle?
a)
1
b)
2
c)
4
d)
6
59.
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
60.
Where is the krebs cycle located?
a)
Outer mitochondria membrane
b)
Matrix
c)
Cytoplasm
d)
Inner membrane
61.
The number of ATP molecules produced out of Krebs Cycle is:
a)
2
b)
3
c)
4
d)
0
62.
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
a)
2
b)
3
c)
4
d)
6
63.
How many CO2 molecules are produced by the Krebs Cycle for a molecule of glucose?
a)
2
b)
4
c)
6
d)
3
64.
Folds in the mitochondrion are called:
a)
Cristae
b)
Matrix
c)
Golgi Bodies
d)
Carbuncles
65.
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
66.

During the conversion of pyruvic acid to acetyl coA, what molecules are produced

a)

2 ATP, 2 FADH2, and 6 NADH

b)

2 NADH, 2 CO2

c)

2 NADH, 2 ATP

d)

3 NADH, 1 CO2, 1 FADH2, 1 ATP

67.

Oxalo acetic acid combines with acetyl co A to form

a)

Citric acid

b)

Iso citric acid

c)

Cis aconitic acid

d)

Oxalo succinic acid

68.
The "regenerator" of the Krebs Cycle is:
a)
Oxaloacetate
b)
Acetyl-CoA
c)
Citrate
d)
α-Ketoglutarate
69.
Before entering Krebs Cycle, pyruvate is:
a)
Oxidized
b)
Reduced
c)
Isomerized to Acetyl-CoA
d)
Phosphorylated
70.
The number of ATP molecules produced out of Krebs Cycle is:
a)
2
b)
3
c)
4
d)
0
71.
How many FADH2 molecules are produced by 1 molecule of glucose?
a)
1
b)
2
c)
3
d)
4
72.
How many FADH2 molecules are produced by 1 turn of the Krebs Cycle?
a)
1
b)
2
c)
3
d)
4
73.
How many NADH molecules are produced by a molecule of glucose through the Krebs' Cycle?
a)
2
b)
3
c)
4
d)
6
74.
After Krebs Cycle, how many Carbon atoms from the original glucose molecule remain?
a)
0
b)
1
c)
3
d)
2
75.
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
76.
The Krebs cycle does not occur if
a)
oxygen is present
b)
fermentation occurs
c)
glycolysis occurs
d)
carbon dioxide is present
77.
The Krebs cycle produces 
a)
oxygen
b)
lactic acid
c)
electron carriers
d)
glucose
78.
The energy of the electrons passing along the electron transport chain is used to make
a)
lactic acid
b)
citric acid
c)
alcohol
d)
ATP
79.
What does ATP synthase do?
a)
Create ATP in chemiosmosis.
b)
Break down ATP in chemiosmosis.
c)
Break down NADPH. 
d)
Create NADPH.
80.
What is the only useable form of energy?
a)
ADP
b)
ATP
c)
Glucose
d)
sugar
81.
Which molecule enters Krebs Cycle?
a)
Pyruvate
b)
Glucose
c)
Acetyl CoA
d)
reducing powers
82.
Where does ETC occur?
a)
Mitochondrial matrix
b)
Outer mitochondrial membrane
c)
Inner mitochondrial membrane
d)
Cytosol (outside of the mitochondria)
83.
Which passes high energy electron into the electron transport chain
a)
NADH & FADH2
b)
ATP & ADP
c)
citric acid
d)
acetyl CoA
84.
The final electron acceptor in respiration is ___ that mixes with ___ to produce ___.
a)
water : hydrogen : oxygen
b)
hydrogen : oxygen : water
c)
hydrogen : water : oxygen
d)
oxygen : hydrogen : water
85.
What process pumps H+ ions across the intermembrane space?
a)
Chemiosmosis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Glycolysis
86.
What stage produces the greatest amount of ATP?
a)
Chemiosmosis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Glycolysis
87.
What process needs high energy electron carriers (NADH and FADH2) to begin?
a)
Electron Transport Chain
b)
Link Reaction
c)
Chemiosmosis
d)
Glycolysis
88.
Which process is responsible for generating the most high energy electron carriers such as NADH?
a)
Link Reaction
b)
Glycolysis
c)
Electron Transport Chain
d)
Krebs Cycle
89.
Which process releases the most Carbon Dioxide?
a)
Chemiosmosis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Glycolysis
90.
Cellular Respiration is considered aerobic because it:
a)
requires carbon dioxide
b)
requires glucose
c)
requires ATP
d)
requires oxygen
91.

What is the very interior of the mitochondria called?

a)

stroma

b)

mitochondrial media

c)

mitochondrial matrix

d)

mitoplasm

92.

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

a)

1

b)

2

c)

3

d)

6

93.

What are final totals of molecules produced in the Kreb's Cycle?

a)

1 ATP, 3 NADH, 1 FADH2

b)

2 ATP, 10 NADH, 2 FADH2

c)

2 ATP, 6 NADH, 2 FADH2

d)

1 ATP, 5 NADH, 1 FADH2

94.

What process(es) occur within the inner mitochondrial membrane/cristae?

a)

Kreb's Cycle

b)

Electron Transport Chain

c)

Chemiosmosis

d)

Both Electron Transport Chain AND Chemiosmosis

95.

Which of the following happen during the Electron Transport Chain?

a)

High energy electrons travel down the ETC, pumping H+'s into the intermembrane space

b)

H+'s travel down the ETC, pumping high energy electrons into the intermembrane space

c)

H+'s diffuse through ATP Synthase, turning it so it can make ATP

96.

During Chemiosmosis, H+'s diffuse through what protein, making ATP?

a)

Chlorophyll

b)

ATP Synthase

c)

Cytochrome c

d)

ATPase

97.

At the end of the ETC and Chemiosmosis, what binds to the electrons and H+'s?

a)

H2O

b)

ATP

c)

O2

d)

CO2

98.

Which of the following represents the correct pairing of location and process?

a)

Glycolysis - stroma

b)

Kreb's Cycle - cytoplasm

c)

Electron Transport Chain - inner membrane/cristae

d)

Chemiosmosis - intermembrane space

99.
Protons are pumped out of the _________ in the ETC.
a)
Matrix
b)
Cristae
c)
InterMembrane Space
d)
Mitochondrion
100.
H+ come back into the matrix because of:
a)
Magic
b)
Facilitated Diffusion
c)
Diffusion
d)
Osmosis
101.
If a hole was created in the inner mitochondrial membrane the result would be _________ ATP created from the ETC.
a)
Less
b)
More
102.
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
103.

What is a disadvantage of fermentation as a process?

a)

It produces too much ATP

b)

It only produces 2 ATP per glucose

c)

It occurs in the absence of oxygen

d)

It is only for quick bursts of energy

104.
What cells in the body may undergo lactic acid fermentation during exercise? 
a)
Muscle cells
b)
Fat cells
c)
Liver cells
d)
Skin cells
105.
Lactic acid fermentation occurs in your muscles after a workout because your cells are struggling to get
a)
Glucose
b)
Sunlight
c)
Oxygen
d)
Water
106.
The process carried out by yeast that causes bread to rise is
a)
alcoholic fermentation
b)
lactic acid fermentation
c)
cellular respiration
d)
yeast mitosis
107.
If your body runs out of oxygen, it will begin to perform ______.
a)
alcohol fermentation
b)
photosynthesis
c)
cellular respiration
d)
lactic acid fermentation
108.
Which process produces CO2 as a waste product?
a)
Lactic Acid Fermentation
b)
Ethanol (Alcoholic) Fermentation
109.

What type of fermentation does yogurt use?

a)

alcoholic

b)

lactic acid

c)

original

110.

What do yeast produce?

a)

O2 and CO2

b)

O2 and ethanol

c)

CO2 and ethanol

d)

ethanol only

111.
During fermentation
a)
NAD+ is regenerated, allowing glycolysis to continue
b)
oxygen is required
c)
glucose is split into 3 pyruvic acid moleculees
d)
water is produced
112.
The products of lactic acid fermentation are
a)
lactic acid and NAD+
b)
carbon dioxide and NAD+
c)
pyruvic acid and NADH
d)
alcohol and lactic acid
113.

How many ATP molecules are created by fermentation itself? (not glycolysis, etc)

a)

0

b)

2

c)

12

d)

36

114.
Bread is a product of fermentation that contains bubbles. These bubbles come from:
a)
Carbon Dioxide
b)
Lactic Acid 
c)
Oxygen
d)
Water

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