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Cellular respiration

Total questions: 112

Worksheet time: 1hrs 24mins

Name
Class
Date
1.
In which way are photosynthesis and cellular respiration different?
a)
Cellular respiration stores ATP, while photosynthesis releases ATP.
b)
Cellular respiration produces oxygen, while photosynthesis uses oxygen.
c)
Photosynthesis releases energy, while cellular respiration stores energy.
d)
Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide.
2.
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
3.
What does metabolism mean?
a)
Converting energy into food
b)
Making light reactions happen
c)
Converting food into energy
4.
In cellular respiration, the electron transport chain takes place in
a)
the membrane of the mitochondrion
b)
the folds of the mitochondrion
c)
the cytoplasm
d)
the cell nucleus
5.
After intense activity, your muscles feel sore because of 
a)
the accumulation of NAD+
b)
the accumulation of lactic acid 
c)
the accumulation of ATP
d)
the accumulation of carbon dioxide
6.
Fermentation enables glycolysis to continue under 
a)
anaerobic conditions
b)
aerobic conditions
c)
photosynthetic conditions
d)
hydrophobic conditions
7.

Which organism go through cellular respiration?

a)

animals

b)

plants

c)

both animals and plants

d)

none

8.

Cellular Respiration occurs in what cell organelle?

a)

chloroplast

b)

cytoplasm

c)

mitochondria

d)

animal

9.

Which molecule is the reactant of Glycolysis?

a)

water

b)

glucose

c)

carbon dioxide

d)

ATP

10.

What's the chemical formula for glucose?

a)

6C6H12O6

b)

C12H6O12

c)

C6H12O6

d)

CHO

11.

The Electron Transport Chain is a series of chemical reactions in which energy is transferred to form a large amount of what molecule?

a)

glucose

b)

oxygen

c)

pyruvic acid

d)

ATP

12.

Which of the following structure is where cellular respiration (Kreb's Cycle and Electron Transport Chain) occurs in the cell?

a)

nucleus

b)

cytoplasm

c)

mitochondria

d)

vacuoles

13.

What type of respiration requires oxygen?

a)

Aerobic

b)

Anaerobic

14.

Select ALL the products of Cellular Respiration? *clue: 3*

a)

oxygen

b)

glucose

c)

carbon dioxide

d)

water

e)

ATP (energy)

15.
What type of respiration requires oxygen?
a)
Aerobic
b)
Anaerobic
16.
What type of respiration does not require oxygen?
a)
Aerobic
b)
Anaerobic
17.
Which type of respiration is most efficient?
a)
Aerobic
b)
Anaerobic
18.
Which organ excretes carbon dioxide?
a)
Lungs
b)
Liver
c)
Heart
d)
Kidney
19.
What happens to your breathing rate when you exercise?
a)
It increases
b)
It decreases
c)
It stays the same
20.

True or False: Only animals can undergo Cellular Respiration.

a)

True

b)

False

21.
The purpose of cellular respiration is to 
a)
make water
b)
make ATP
c)
make glucose
d)
make  oxygen
22.
If oxygen is not present what process will occur in yeast cells?
a)
Alcoholic fermentation
b)
Respiration
c)
Photosynthesis
d)
Lactic acid fermentation
23.
During fermentation, yeast produces CO2 and
a)
lactic acid
b)
alcohol
c)
hydrogen 
d)
water
24.

Which of these is a product of cellular respiration?

a)

ATP

b)

Carbon dioxide

c)

Water

d)

All of these are a product of cellular respiration

25.
Which process produces the most ATP per molecule of glucose?
a)
lactic acid fermentation
b)
aerobic respiration
c)
alcoholic fermentation
d)
all are about the same
26.
Yeast is a(n)
a)
animal
b)
plant
c)
fungus
d)
bacteria
27.
ATP is called a cell's "energy currency" because
a)
ATP catalyzes all metabolic reactions
b)
ATP allow one organelle to be exchanged for another between cells
c)
glucose is made of ATP
d)
most of the energy that drives metabolism is supplied by ATP
28.
When a phosphate group is removed from an ATP molecule, 
a)
a substantial amount of energy is released
b)
an enzyme is formed
c)
energy is stored
d)
activation energy is increased
29.
When glycolysis occurs,
a)
a molecule of glucose is split
b)
two pyruvate are made
c)
some ATP is produced
d)
all of these
30.
The process of cellular respiration 
a)
is performed only by organisms that are incapable of photosynthesis
b)
is performed by autotrophs and heterotrophs
c)
occurs before plants are able to carry out photosynthesis
d)
occurs only in animals
31.
In the presence of oxygen, cellular respiration takes place in two stages. They are
a)
glycolysis and fermentation
b)
electron transport chain, then fermentation
c)
glycolysis, then aerobic respiration
d)
glycolysis, then the Calvin cycle
32.
Cells produce ATP most efficiently in the presence of
a)
water
b)
carbon dioxide
c)
oxygen
d)
radiant energy
33.
Which of the following processes creates the most ATP during aerobic cellular respiration?
a)
glycolysis
b)
fermentation
c)
electron transport chain
d)
Kreb's cycle
34.

What are the reactants (taken into) of cellular respiration? (Mark all of them!)

a)

oxygen

b)

glucose

c)

carbon dioxide

d)

water

e)

energy

35.

How many ATP are produced in aerobic respiration?

a)

2

b)

33

c)

4

d)

36

36.
Where does the Krebs Cycle take place?
a)
mitochondria
b)
chloroplast
c)
cytoplasm
d)
nucleus
37.

What is the name of the energy produced during cellular respiration?

a)

ATP

b)

NADH

c)

FADH2

d)

glucose

38.

Where does Glycolysis occur inside the cell? (first step in the overall process)

a)

Cytoplasm

b)

Mitochondria

c)

Chloroplast

d)

Nucleus

39.
What is the name of the 1st step of cellular respiration?
a)
Glycolysis
b)
Kreb's Cycle
c)
ETC
d)
Anaerobic respiration
40.
Where does glycolysis take place?
a)
Cytoplasm
b)
Stroma
c)
Thylakoid
d)
Mitochondria
41.
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
42.
Glucose is broken down during which process
a)
Krebs cycle
b)
Calvin cycle
c)
Glycolysis
d)
Photosynthesis
43.
Which is not a waste product of cellular respiration?
a)
Water
b)
Heat
c)
Carbon Dioxide
d)
Oxygen
44.
Aerobic respiration occurs in which organelle?
a)
chloroplast
b)
mitochondrion
c)
ribosome
d)
nucleus
45.
Which statement best compares aerobic and anaerobic respiration? 
a)
Less ATP is generated during anaerobic respiration than during aerobic respiration. 
b)
More water is generated during anaerobic respiration than during aerobic respiration. 
c)
More oxygen is generated during anaerobic respiration than during aerobic respiration. 
d)
Less lactic acid is generated during anaerobic respiration than during aerobic respiration. 
46.
How does the amount of energy resulting from fermentation compare with that of aerobic respiration? 
a)
Aerobic respiration results in less energy.
b)
Aerobic respiration results in more energy.
c)
Each process results in equal amounts of energy. 
d)
Each process results in variable amounts of energy. 
47.
What will most likely be the result if all of the mitochondria are removed from a plant cell? 
a)
It will be unable to carry out respiration. 
b)
It will lose water through osmosis. 
c)
It will break down the ribosomes in the cell. 
d)
It will be unable to photosynthesize
48.
What is the function of the organelle identified by #3?
a)
produce sugars
b)
direct protein synthesis
c)
produce energy
d)
trap sunlight
49.
Aerobic respiration occurs in the presence of ______________.
a)
nitrogen
b)
carbon dioxiide
c)
oxygen
d)
carbon monoxide
50.
This organelle could likely be found in 
a)
plant cells only.
b)
animal cells only.
c)
prokaryotes only.
d)
plant and animal cells.
51.
The inner membrane of this organelle is highly folded.  What is the advantage of this folding?
a)
It increases the amount of light absorbed by the organelle.
b)
It increases the structural support of the organelle.
c)
It increases the surface area, allowing greater ATP production.
d)
It increases the surface area and the rate of glucose production.
52.
Muscle cells that are used during heavy exercise often do not receive enough oxygen for energy production.  What waste product builds up in muscle cells resulting in soreness?
a)
water
b)
alcohol
c)
carbon dioxide
d)
lactic acid
53.
What gas is causing the balloons to inflate?
a)
oxygen
b)
nitrogen
c)
carbon dioxide
d)
carbon monoxide
54.
Aerobic respiration yields about  ___ ATP molecules per glucose, whereas anaerobic respiration yields ____ ATP molecules per glucose.
a)
36; 2
b)
2; 36
c)
6; 2
d)
36; 18
55.
What energy-yielding process is occurring in the test tube with the orange balloon filled with yeast, water, and sugar?
a)
lactic acid fermentation
b)
alcoholic fermentation
c)
aerobic respiration
d)
photosynthesis
56.

Under anaerobic conditions yeast release

a)

oxygen

b)

carbon monoxide

c)

lactic acid

d)

ethyl alcohol

57.

Lactic acid is produced by

a)

yeast during cellular respiration

b)

yeast during anaerobic respiration

c)

human muscles cells during aerobic respiration exercise

d)

muscle cells when they receive sufficient oxygen to power physical activity

e)

none of thee

58.

The term aerobic means

a)

wine-making

b)

with carbon dioxide

c)

without carbon dioxide

d)

with oxygen

e)

without oxygen

59.

Respiration ____ and cellular respiration ____.

a)

produces ATP, is gas exchange

b)

is gas exchange, produces ATP

c)

produces glucose, produces glucose

d)

uses glucose, produces glucose

60.

Humans use calories they obtain from ____ as their energy source.

a)

food

b)

water

c)

sunlight

d)

minerals

61.

During redox reactions

a)

the loss of electrons from one substance is called oxidation

b)

a substance that gains electrons is said to be reduced

c)

electrons are lost from one substance and added to another substance

d)

protons lost from one molecule replace the electrons lost from another molecule

62.

During cellular respiration, NADH

a)

is converted by NAD+ by enzyme called dehydrogenase

b)

is converted directly to ATP

c)

is reduced from NAD+

d)

is involved in an exergonic reaction when it gives up electrons to other molecules

63.

Oxidation is the ____ and reduction is the _____.

a)

gain of electrons...loss of electrons

b)

loss of electrons.... gain of electrons

c)

loss of oxygen...gain of oxygen

d)

gain of oxygen...loss of oxygen

64.

The functioning of an electron transport chain can be analogized with

a)

a slinky going downstairs

b)

going over a waterfall

c)

climbing a flight of stairs one step at a time

d)

jumping from the top to the bottom of a flight of stairs

65.

which of the following is the result of glycolysis?

a)

reduction of FAD to FADH2

b)

production of carbon dioxide

c)

conversion of glucose to 2 three carbon compounds

d)

conversion of NADH to NAD+

66.

The end products of the KREBS cycle include all of the following except

a)

carbon dioxide

b)

pyruvic acid

c)

ATP

d)

NADH

67.

In the electron transport chain, electrons are passed from one electron transport molecule to another and are finally accepted by

a)

an oxygen molecule

b)

a molecule of carbon dioxide

c)

a molecule of water

d)

ADP

68.

Which of the following processes is most efficient (produces most ATP per molecule if glucose oxidized)

a)

aerobic respiration

b)

anaerobic respiration

c)

alcoholic fermentation

d)

lactic acid fermentation

69.

Bacteria that are unable to survive in the presence of oxygen are called

a)

strict anaerobes

b)

aerobes

c)

facultative anaerobes

d)

chemosynthetic bacteria

70.

In yeast cells,

a)

lactic acid is produced during anaerobic respiration

b)

lactic acid is produced by glycolysis

c)

alcohol is produced during KREBS cycle

d)

alcohol is produced after glycolysis

71.

Muscle soreness associated with strenuous exercise is at least partly due to

a)

an excess of ATP that builds up during exercise

b)

the presence of lactic acid from fermentation by muscle cells

c)

the large amount of carbon dioxide that builds up in muscle

d)

the accumulation of alcohol from anaerobic respiration

72.

Muscle soreness associated with strenuous exercise is at least partly due to

a)

an excess of ATP that builds up during exercise

b)

the presence of lactic acid from fermentation by muscle cells

c)

the large amount of carbon dioxide that builds up in muscle

d)

the accumulation of alcohol from anaerobic respiration

73.
What are the total outputs of glycolysis?
a)
4 ATP, 2 pyruvate, 2 NADH
b)
2 ATP, 2 pyruvate, 2 NADH
c)
2 ATP, 2 pyruvate, 1 NADH, 1 FADH2
d)
4 ATP, 1 pyruvate, 3 NADH
74.
What are the net outputs of glycolysis?
a)
2 ATP, 2 NADH, 3 Pyruvate
b)
3 ATP, 2 NADH, 3 Pyruvate
c)
2 ATP, 2 NADH, 1 Pyruvate
d)
2 ATP, 2 NADH, 2 Pyruvate
75.
Where does Pyruvate Processing (Pyruvate Dehydrogenase Complex) take place in the cell?
a)
Inner Mitochondrial Membrane
b)
Cytosol
c)
Mitochondrial Matrix
d)
Cell Membrane
76.
How many carbons are in pyruvate?
a)
1
b)
2
c)
3
d)
4
77.
Where does the Citric Acid Cycle (Krebs Cycle) happen in the cell?
a)
Cytosol
b)
Inner Mitochondrial Membrane
c)
Cell Membrane
d)
Mitochondrial Matrix
78.
How many carbons are in Acetyl-CoA
a)
1
b)
2
c)
3
d)
4
79.
What are the inputs to the Citric Acid Cycle (Krebs Cycle)?
a)
2 Acetyl-CoA, 1 ADP, 3 NAD+, 1 FAD+
b)
2 Acetyl-CoA, 1 ATP, 3 NAD+, 1 FAD+
c)
2 Acetyl-CoA, 1 ATP, 3 NADH, 1 FAD+
d)
2 Acetyl-CoA, 1 ADP, 3 NADH, 1FADH2
80.
Where is the Electron Transport Chain in the cell?
a)
Cytoplasm
b)
Cell Membrane
c)
Inner Mitochondrial Membrane
d)
Mitochondrial Matrix
81.
Where does cellular respiration take place in eukaryotic cells?
a)
Mitochondria
b)
Chloroplast
c)
Rough ER
d)
Cell Membrane
82.
Which of these is a product of photosynthesis and a requirement for cellular respiration?
a)
Glucose
b)
Carbon Dioxide
c)
Sunlight
d)
Water
83.
Which of the three steps of cellular respiration is anaerobic?
a)
Glycolysis
b)
Citric Acid Cycle
c)
Kreb's Cycle
d)
Electron Transport Chain
84.

What are the final products of oxidative phosphorylation?

a)

NADH

b)

ATP

c)

CO2

d)

H2O

85.

All plant and animals use this process to get energy.

a)

Chemosynthesis

b)

Respiration

c)

photosynthesis

d)

all of the answers

86.

What is a disadvantage of anaerobic respiration?

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

87.
Where does anaerobic respiration occur?
a)
glucose molecule
b)
mitochondria
c)
cytoplasm
88.

When oxygen is running low, our bodies resort to __________ for energy.

a)

cellular respiration

b)

lactic acid fermentation

c)

alcoholic fermentation

d)

glycolysis

89.

What happens when the

phosphate bonds of ATP break?

a)

Acid is neutralized.

b)

Energy is stored.

c)

Energy is released.

d)

An organism becomes sick.

90.

The energy produced by cellular respiration is stored in the ...

a)

ionic bonds of water.

b)

bonds between phosphates of ATP.

c)

chemical bonds of carbon dioxide.

d)

double covalent bonds of oxygen molecules.

91.

Which of these "events" might start the fermentation process?

a)

after a person eats bread

b)

when carbon dioxide is absent

c)

when bread does not rise correctly and comes out flat

d)

when a person is running

92.
Which is a product of the electron transport chain?
a)
glucose
b)
carbon dioxide
c)
water
d)
oxygen
93.
Which is a reactant of the electron transport chain?
a)
glucose
b)
carbon dioxide
c)
water
d)
oxygen
94.
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
95.
___ produces the most ATP.
a)
ETC
b)
Anaerobic respriation
c)
Glycolysis
d)
Kreb's Cycle
96.
What is the name of the process that helps make beer and wine?
a)
Fermentation
b)
Alcoholic fermentation
c)
Lactic acid fermentation
d)
Glycolysis
97.
How does the amount of energy resulting from fermentation compare with that of aerobic respiration? 
a)
Aerobic respiration results in less energy.
b)
Each process results in equal amounts of energy.
c)
Aerobic respiration results in more energy.
d)
Each process results in variable amounts of energy. 
98.
The final electron acceptor in the ETC is
a)
oxygen
b)
NADH
c)
glucose
d)
CO2
99.
This reaction is performed to recycle NAD+ needed for efficient respiration. 
a)
Krebs cycle
b)
oxidative phosphorylation
c)
lactic acid fermentation
d)
chemiosmosis 
100.
If the delta G of a reaction is negative, which response shows the best conclusion for that reaction? 
a)
The reaction will release more energy than was needed to form the reaction.
b)
Energy from the reaction can be used to do work. 
c)
Energy is absorbed by the reaction which then can be used to power other reactions. 
d)
Energy is absorbed within the reaction and distributed unevenly throughout the molecule. 
101.
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
102.
Which molecule is not an important molecule regarding Cellular Respiration? 
a)
H2O
b)
NADH
c)
O2
d)
CO2
103.

What are the inputs to the Electron Transport Chain?

a)

Water

b)

Carbon Dioxide

c)

ATP Synthase

d)

NADH and FADH2

104.

When hydrogen ions (protons) are pumped across the inner mitochondrial membrane, they form a proton gradient. ATP is then formed by a process known as:

a)

glycolysis

b)

Krebs cycle

c)

chemiosmosis

d)

substrate-level phosphorylation

105.

Which of the following molecules can be used as a substrate for cellular respiration?

a)

carbohydrates

b)

fats

c)

proteins

d)

all of the above

106.

Cellular respiration harvests the most chemical energy from which of the following?

a)

Substrate-level phosphorylation

b)

Oxidative phosphorylation

c)

Converting oxygen to ATP

d)

Transferring electrons from organic molecules to pyruvate

107.
What acts as the final electron acceptor to keep the ETS moving, producing water?
a)
CO2
b)
O2
c)
H2O
d)
ATP
108.

Which of the following is not part of cellular respiration?

a)

Krebs Cycle

b)

Glycolysis

c)

ETC

d)

Calvin Cycle

109.

You have been growing some animal cells in culture. The cells grow well for several weeks, and then their growth slows down. You conduct some tests and determine that there is a lot of lactic acid in the culture fluid. Which of the following is the most likely explanation for the poor growth of the cells?

a)

There is not enough carbon dioxide in the culture fluid.

b)

There is not enough oxygen in the culture fluid.

c)

There is too much oxygen in the culture fluid.

110.

H2O is an end product in

a)

lactic acid fermentation

b)

fermentation

c)

ETC

d)

the Krebs Cycle

111.

Glycolysis and aerobic respiration are different in that

a)

glycolysis occurs on the cell membrane, while aerobic respiration occurs in mitochondria.

b)

glycolysis occurs only in photosynthesis, while aerobic respiration is part of cellular respiration.

c)

glycolysis occurs in the absence of oxygen, while aerobic respiration requires oxygen.

d)

there is no difference; these terms are different names for the same process.

112.

Which of the following is the best explanation for the presence of both chloroplasts and mitochondria in plant cells?

a)

In the light, plants are photosynthetic autotrophs. In the dark, they are heterotrophs.

b)

If plants cannot produce enough ATP in the process of photosynthesis to meet their energy needs, they can produce it in aerobic respiration.

c)

Sugars are produced in chloroplasts. These sugars can be stored in the plant for later use, converted to other chemicals, or broken down in aerobic respiration to yield ATP for the plant to use to meet its energy needs.

d)

The leaves and sometimes the stems of plants contain chloroplasts, which produce ATP to meet the energy needs of these plant parts. The roots of plants contain mitochondria, which produce ATP to meet the energy needs of these plant parts.

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