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AP Bio Unit 3 - Cellular Energy

Total questions: 164

Worksheet time: 3hrs 38mins

Name
Class
Date
1.
What is the primary function of the light reactions of photosynthesis?
a)
To produce glucose
b)
To produce NADPH and ATP
c)
To use ATP
d)
To produce RuBP
2.
What is the function of NADP+?
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
3.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
4.
The H+ concentration gradient is used to 
a)
make NADPH
b)
split a water molecule
c)
generate ATP
d)
form water
5.
Green plants reflect ________ light.
a)
Red
b)
Green
c)
All
d)
Red and Violet
6.
The light reactions occur in the ________ and the dark reactions take place in the ________.
a)
Chloroplast / thylakoid membrane
b)
stroma / thylakoid
c)
mesophyl / stomata
d)
thylakoid membrane / stroma
7.
Where does the carbon come from that is used to form glucose?
a)
The soil
b)
CO2 in the air
c)
From other carbohydrates
d)
Calvin Cycle
8.
Where does the Calvin cycle take place?
a)
stroma of the chloroplast
b)
thylakoid membrane
c)
outer membrane of the chloroplast
d)
interior of the thylakoid membrane
9.
site of the krebs cycle
a)
1
b)
2
c)
3
d)
4
10.
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. 
11.
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
12.
Which process least amount of ATP in cells? 
a)
Glycolysis
b)
Citric Acid cycle
c)
Lactic acid Fermentation
d)
Pyruvate Oxidation
13.
Which molecule is not an important molecule regarding Cellular Respiration? 
a)
H2O
b)
NADH
c)
O2
d)
CO2
14.
Which process does not occur in aerobic conditions? 
a)
Fermentation
b)
Pyruvate Oxidation
c)
Citric Acid Cycle or Krebs cycle 
d)
Oxidative Phosphorylation 
15.
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
16.
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 
17.
How is cellular respiration related to photosynthesis?
a)
Both require oxygen to start
b)
respiration is the opposite of photosynthesis
c)
Both start with glycolysis
d)
Both end with 38 ATP for cells
18.
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
19.
What are the products (things that are made) in cellular respiration
a)
ATP
b)
Carbon dioxide (CO2)
c)
Water
d)
All of the above
20.
Glucose is broken down into pyruvate in a process known as 
a)
glycolysis
b)
electron transport
c)
the Krebs cycle
d)
phosphorylation
21.
This term refers to the production of ATP without oxygen being present.
a)
anaerobic
b)
prokaryotic
c)
biogenic
d)
organic
22.
What is cellular respiration?
a)
the breakdown of glucose  to release ATP
b)
the breakdown of glucose to release NADH
c)
the breakdown of glucose to release FADH
d)
the breakdown of glucose to release carbon
23.
NADH is a ______ form of NAD+.
a)
Reduced
b)
Oxidized
c)
Catabolized
d)
Hydrolized
24.
How many ATP are gained through glycolysis?
a)
0
b)
2
c)
4
d)
30-38
25.
Which molecule enters Kreb's Cycle?
a)
Pyruvate
b)
Glucose
c)
Acetyl CoA
d)
reducing powers
26.
What enzyme in the ETC is responsible for generating the ATP molecules?
a)
ATPase
b)
ATP synthase
c)
Hexokinase
d)
none of the above
27.
Where does ETC occur?
a)
Mitochondrial matrix
b)
Outer mitochondrial membrane
c)
Inner mitochondrial membrane
d)
Cytosol
28.
Which process takes place in the presence of oxygen and produces nearly 20 times as much as ATP as glycolysis alone?
a)
photosynthesis
b)
lactic acid fermentation
c)
aerobic respiration
d)
alcoholic fermentation
29.
What process is found in both aerobic and anaerobic metabolism?
a)
the Kreb's cycle
b)
oxidative phosphorylation
c)
the citric acid cycle
d)
glycolysis
30.
At the end of the Kreb's cycle, where is most of the energy from the original glucose stored?
a)
in CO2
b)
in ATP
c)
in NADH
d)
in pyruvate
31.
What are the stages of cellular respiration in order?
a)
glycolysis, oxidative phosphorylation, the citric acid cycle
b)
oxidative phosphorylation, glycolysis, the citric acid cycle
c)
glycolysis, the citric acid cycle, oxidative phosphorylation
d)
the citric acid cycle, oxidative phosphorylation, glycolysis
32.

Enzymes ___________________ activation energy to speed up chemical reactions.

a)

increase

b)

decrease

33.

How does the active site of an enzyme determine the substrate for that enzyme?

a)

The active site has the right polarity to interact with the substrate.

b)

The active site is hydrophobic and interacts with other hydrophobic amino acids on the substrate

c)

The active site has a specific shape that fits the shape of the substrate

d)

The active site uses energy to form covalent bonds with the substrate

34.

How does a competitive inhibitor affect an enzymes function?

a)

It binds to an allosteric site that alters the shape of the enzyme

b)

It changes the polarity of the enzyme, decreasing the rate of reaction

c)

It denatures the enzyme which increases the activation energy for the reaction.

d)

It binds to the active site, preventing the enzyme from catalyzing the reaction

35.

Which of these factors can affect the initial rate of an enzyme reaction?

a)

Enzyme concentration

b)

Substrate concentration

c)

Temperature

d)

pH

e)

All of the above

36.

Based on this graph, which enzyme would function best in a basic environment?

a)

A

b)

B

37.

Why is the hydrolysis of ATP important to a cells function?

a)

It provides a source of phosphate for the cell.

b)

It releases energy that can be used to power cellular processes

c)

It absorbs excess hydrogen ions in the cell to regulate the internal pH

d)

It acts as a catalyst for chemical reactions in the cell.

38.

What is the best reason that plants do not perform photosynthesis at night?

a)

They close their stomata at night to rest

b)

They do not have an energy source to power the light reactions

c)

Only a few types of plants are nocturnal

d)

There is less carbon dioxide released into the air at night

39.

How does a plant obtain the carbon necessary to form glucose?

a)

Through the light reactions

b)

From stored sugars in the roots of the plant

c)

From the catabolic breakdown of water

d)

Through CO2 absorbed from the atmosphere

40.

What are the products of the light reaction directly needed by the Calvin cycle in photosynthesis?

a)

H ions and carbon dioxide

b)

Photons absorbed by chlorophyll

c)

FADH2 and Oxygen

d)

ATP and NADPH

41.

Which phase of photosynthesis produces organic sugars?

a)

The light reactions

b)

The Calvin cycle

c)

The link reaction

d)

Electron transport chain

42.

What are the products of the Krebs Cycle?

a)

Pyruvate, water, ATP, NADH

b)

Acetyl CoA, NADH

c)

NADH, FADH2, carbon dioxide, ATP

d)

ATP, glucose

43.

What are the products of glycolysis?

a)

Pyruvate, ATP, water, NADH

b)

Carbon dioxide, FADH2, NADH, ATP

c)

32 ATP

d)

NADPH and ATP

44.

What are the products of the light reaction of photosynthesis?

a)

Oxygen, NADPH, ATP

b)

Glucose, NADP, ADP

c)

Carbon dioxide, water, ATP

d)

Oxygen, FADH2, ATP

45.

What is the function of NAD in cellular respiration?

a)

It catalyzes the conversion of glucose into ATP

b)

It provides inorganic phosphate needed by ATP synthase

c)

It acts as an electron and proton acceptor to carry energy to the electron transport chain

d)

It is the coenzyme needed to convert glucose into pyruvate

46.

What powers the ATP synthase enzymes in mitochondria and chloroplasts?

a)

The energy absorbed during the light reactions.

b)

The electronegativity of oxygen

c)

Energy released by breaking the chemical bonds in glucose

d)

The diffusion of hydrogen

47.

How are the ATP synthase enzymes in photosynthesis and cellular respiration similar?

a)

They both rely on chemiosmosis of hydrogens down a gradient to power phosphorylation

b)

They are both located in the cytoplasm of the cell

c)

They both use oxygen to create a concentration gradient

d)

They both receive hydrogen ions from FADH2

48.

When will lactic acid build up in animal cells?

a)

When there is excess carbon dioxide

b)

When the cells produce too much ATP

c)

When there is not enough oxygen to fuel the mitochondria

d)

When the cells need to remove excess oxygen to avoid damaging their components.

49.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
50.
What happens to an enzyme when it is denatured?
a)
Activation energy is lowered.
b)
It becomes stronger.
c)
It loses its shape.
d)
Activation energy is raised.
51.
What is structure A?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
52.
What is structure D?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
53.
What is structure C?
a)
Substrate
b)
Active site
c)
Enzyme
d)
Products
54.
How do enzymes speed up chemical reaction?
a)
Increasing activation energy
b)
Decreasing activation energy
c)
Increasing deactivation energy
d)
Decreasing deactivation energy
55.
When a molecule can occupy the same active site as the substrate, a situation called __________________ can result
a)
Competitive lnhibition
b)
Allosteric Regulation
c)
Non-Competitive Inhibition
d)
Feedback Inhibition
56.
A molecule binds to an enzyme and opens the active site so it can bind to the substrate. This is called:
a)
Allosteric Activation
b)
Allosteric Inhibition
c)
Competitive Activation
d)
Competitive Inhibition
57.
A molecule binds to an enzyme and decreases the ability of the active site to bind to the substrate. This is called:
a)
Allosteric Activation
b)
Allosteric Inhibition
c)
Competitive Activation
d)
Competitive Inhibition
58.
What 3 letters do enzymes typically end in?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
59.
Is this reaction endergonic or exergonic?
a)
Exergonic
b)
Endergonic
60.
Is this reaction endergonic or exergonic?
a)
Exergonic
b)
Endergonic
61.
Enzymes will make a reaction go _______ and use ______ energy.
a)
faster, less
b)
faster, more
c)
slower, less
d)
slower, more
62.
In an Exergonic reaction, heat is ________.
a)
Absorbed
b)
Created
c)
Destroyed
d)
Released
63.
After a substrate binds to an enzyme,
a)
the substrate and enzyme are joined permanently 
b)
the enzyme can start the reaction again once the products are released
c)
the enzyme cannot be used in the reaction again
d)
the enzyme is destroyed in the chemical reaction
64.
How do competitive inhibitors affect enzymes?
a)
It binds to the active site, blocking the substrate
b)
It changes the shape of the enzyme
c)
It increases the activation energy
d)
It decreases the activation energy
65.
How do non-competitive inhibitors affect enzymes?
a)
It binds to the active site, blocking the substrate
b)
It changes the shape of the enzyme
c)
It increases the activation energy
d)
It decreases the activation energy
66.
Oxidation involves
a)
gaining electrons; gaining oxygen
b)
losing electrons; losing oxygen
c)
gaining electrons; losing oxygen
d)
losing electrons; gaining oxygen
67.
Reduction involves 
a)
gaining electrons; gaining oxygen
b)
losing electrons; losing oxygen
c)
gaining electrons, losing oxygen
d)
losing electrons; gaining oxygen
68.
This is the most important factor about an enzyme that determines what job it will do in the body.
a)
The sugars that make up the enzyme
b)
The nucleic acids that make up the protein
c)
The shape of the enzyme
d)
The fatty acids that make up the protein
69.
What effect do low temperatures have on enzymatic activity? 
a)
Low temperatures denature enzymes and slows reactions
b)
Low temperatures change the structure of substrates and slow reactions
c)
Low temperatures means molecules are moving slower and so reaction rate is low
d)
Enzymes work best at low temperatures
70.
Enzymes need certain environmental conditions in order to function properly.  What happens when enzymes are heated to a high temperature?
a)
they die
b)
they denature
c)
they change their amino acid sequence
d)
they work better
71.
The mechanism by which the end product of a metabolic pathway inhibits an earlier step in the pathway is called ___________
a)
metabolic inhibition
b)
feedback inhibition
c)
irreversible inhibition
d)
allosteric regulation
72.
Why does enzyme activity decrease when it is in solution that has either a too high or too low pH?
a)
All enzymes only work in neutral solutions
b)
Enzyme activity remains unchanged in different pH's
c)
The shape of the active site changes
d)
The shape of the substrate changes
73.

On an enzyme, the site that attaches to a substrate

a)

Polypeptide

b)

Base

c)

Substrate

d)

Active site

74.

The molecule an enzyme is working on is called the:

a)

Substrate

b)

Cofactor

c)

Inhibitor

d)

Coenzyme

75.

Which chemical is classified as an enzyme?

a)

Galactose

b)

DNA

c)

Protease

d)

Carbon Dioxide

76.

What reduces the productivity of enzymes by blocking substrates from entering active sites?

a)

noncompetative inhibitor

b)

competative inhibitors

c)

coenzymes

d)

cofactors

77.

The process that involves an end product acting as an inhibitor of an earlier step in a metabolic pathway is called

a)

Feedback Inhibition

b)

Competitive Inhibition

c)

Protein Denaturing

d)

Allosteric Activation

78.

In an Endergonic reaction, heat is ________.

a)

Absorbed

b)

Created

c)

Destroyed

d)

Released

79.

Enzymes are

a)

Protiens

b)

Lipids

c)

Carbohydrates

d)

DNA

80.

Sucrase has an optimum temperature of 37 C and an optimum pH of 6.2. What would happen if the pH changed from 6 to 3?

a)

Sucrase would continue to work the same

b)

The reaction sucrase catalyzes would speed up

c)

The reaction sucrase catalyzes would slow down

81.

what Does the illustration represent?

a)

Competitive inhibition

b)

Non-competitive inhibition

c)

An enzyme pathway

d)

Allosteric Activation

82.

What does the image show?

a)

Enzyme pathway

b)

Activation energy graph

c)

Exergonic reaction

d)

Activation site

e)

Protein synthesis

83.

Which factor that effects enzyme rate does the graph illustrate?

a)

Temperature

b)

pH

c)

Enzyme concentration

d)

Substrate concentration

84.

Which factor that effects enzyme rate does the graph illustrate?

a)

Temperature

b)

pH

c)

Enzyme concentration

d)

Substrate concentration

85.

Which factor that effects enzyme rate does the graph illustrate?

a)

Temperature

b)

pH

c)

Enzyme concentration

d)

Substrate concentration

86.

The endosymbiotic theory states that eukaryotic cells engulfed smaller cells and kept them around. This gave the smaller cells a protection while giving the eukaryotic cells a smaller localized area for reactions to occur. What is it called when smaller spaces within a larger area are given specific tasks?

a)

Compartmentalization

b)

Denaturation

c)

Protein Folding

d)

Polarization

87.
What supplies the electrons that are lost in PS I?
a)
the electrons from PS II
b)
water
c)
glucose
d)
oxygen
88.
What is the function of NADP+?
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
89.
The enzyme responsible for Carbon Fixation in C3 Photosynthesis is
a)
RuBisCo
b)
PEP Carboxylase
c)
Hexokinase
d)
Pyruvate DeHydrogenase
90.
Which of the following molecules is not needed for the Calvin Cycle?
a)
CO2
b)
ATP
c)
NADPH
d)
H2O
91.
How many sugar molecules are produced from every six molecules of carbon dioxide that enter the Calvin cycle?
a)
1
b)
3
c)
6
d)
12
92.
The H+ concentration gradient is used to 
a)
make NADPH
b)
split a water molecule
c)
generate ATP
d)
form water
93.
__________ is a stack of thylakoids
a)
Granum
b)
Stomata
c)
Stroma
d)
Chloroplast
94.
The light reactions occur in the ________ and the dark reactions take place in the ________.
a)
Chloroplast / thylakoid membrane
b)
stroma / thylakoid
c)
mesophyl / stomata
d)
thylakoid membrane / stroma
95.
What is represented by "E" in this image?
a)
ATP
b)
NADPH
c)
Light Energy
d)
Glucose
96.
Where does the carbon come from that is used to form glucose?
a)
The soil
b)
CO2 in the air
c)
From other carbohydrates
d)
Calvin Cycle
97.
Organisms, such as plants, that make their own food are called
a)
autotrophs
b)
heterotrophs.
c)
thylakoids.
d)
pigments.
98.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
99.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
6CO2 + 6H2O --> 6O2 + C6H12O6
b)
6CO2 + C6H12O6 + 6H2O --> O2 
c)
6O2 + 6H2O --> 6CO2 + C6H12O6
d)
C6H12O6 + 6O2 ---> 6H2O + 6CO2 
100.
Use the diagram to answer the question. Between which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
A and C
c)
B and C
d)
C and D
101.
Which of the following best describes photosynthesis?
a)
Photosynthesis converts radiant energy into chemical energy.
b)
Photosynthesis produces carbohydrates.
c)
Plants need sunlight, carbon dioxide, water, nutrients, and chlorophyll to complete photosynthesis.
d)
Plants use chlorophyll, water, and carbon dioxide to make sugar.
102.
During which phase of photosynthesis is O2 created?
a)
Light dependent reactions
b)
Calvin Cycle
c)
Citric Acid Cycle
d)
Glycolysis
103.
Which of the following are products of the light reactions of photosynthesis that are utilized in the Calvin cycle?
a)
CO2 and glucose
b)
H2O and O2
c)
electrons and H+
d)
ATP and NADPH
104.
Where does the Calvin cycle take place?
a)
stroma of the chloroplast
b)
thylakoid membrane
c)
outer membrane of the chloroplast
d)
interior of the thylakoid membrane
105.
When oxygen is released as a result of photosynthesis, it is a direct by-product of
a)
reducing NADP+
b)
splitting water molecules
c)
chemiosmosis
d)
electron transfer in photosystem II and I
106.
In a plant cell, where are ATP synthase complexes located?
a)
thylakoid membranes only
b)
inner mitochondrial membranes only
c)
thylakoid membrane and inner mitochondrial membranes
d)
thylakoid membrane and plasma membranes
107.
What is the primary function of the Calvin cycle?
a)
regenerate ATP for use in the light reactions of photosynthesis
b)
produce carbon dioxide for use in the light reactions of photosynthesis
c)
produce oxygen by oxidizing water
d)
produce simple sugars from carbon dioxide
108.
Reactions that consume CO2 take place in
a)
the light reactions of photosynthesis only
b)
the calvin cycle only
c)
the light reactions and the calvin cycle
d)
the calvin cycle and the citric acid cycle
109.
CAM plants keep stomata closed in daytime, thus reducing loss of water. They can do this because they
a)
fix CO2 into organic acids during the night when temperatures are cooler.
b)
fix CO2 into by combining it with RuBP in the Calvin cycle.
c)
obtain CO2 through their roots during the day.
d)
fix CO2 into organic acids in the mesophyll cells, which do not rely on stomata.
110.
If an aquatic plant is placed into a test tube with water near a light source, what will it produce?
a)
Glucose and Oxygen
b)
Carbon dioxide and ATP
c)
Water and Oxygen
d)
Glucose and ATP
111.
Most plants appear green because chlorophyll
a)
absorbs green light.
b)
absorbs violet light.
c)
does not absorb green light.
d)
does not absorb violet light.
112.
What is one function of the other pigments  besides chlorophyll, in the chloroplast?
a)
to block damaging wavelengths of light
b)
to absorb different wavelengths than the chloroplasts
c)
to provide different colors to the leaves
d)
to transfer energy to a separate photosystem beside the one using chlorophyll a and b.
113.
oxygen becomes attached to RuBP during...
a)
C3 pathway
b)
C4 pathway
c)
Calvin-Benson Cycle
d)
Photorespiration
114.
The color of light least effective in driving photosynthesis is _________
a)
blue
b)
red
c)
orange
d)
green
115.
Photosynthesis and Cellular Respiration are cyclic processes because
a)
the products of one are the reactants of the other
b)
They don't have anything to do with each other.
c)
the reactants and products are the same
d)
none of the above
116.
Where does carbon dioxide enter plants?
a)
The leaves
b)
Stomata
c)
Roots
d)
Stem
117.
Which of these conditions would decrease the rate of photosynthesis in a plant?
a)
Above average precipitation
b)
Changing the daylight hours from 14 hrs to 10 hrs
c)
Changing the CO2 concentration from 380 ppm to 410 ppm
d)
All of these choices
118.

Why does photorespiration occur?

a)

stomata are closed and CO2 levels are too low.

b)

stomata are closed and O2 levels are too low.

c)

stomata are open and too much water is leaving the plant

d)

stomata are open and the plant receives too much CO2

119.

What is represented by "D" in this image?

a)

ATP

b)

NADPH

c)

CO2

d)

Glucose

120.

C4 and CAM plants use which enzyme(s) for photosynthesis?

a)

PEP Carboxylase

b)

PEP Carboxylase and Rubisco

c)

Rubisco

d)

Neither PEP Carboxylase and Rubisco

121.

Compared to C3 plants, C4 plants

a)

have higher rates of photorespiration.

b)

can continue to fix CO2 even at relatively low CO2 concentrations and high oxygen concentrations.

c)

do not use rubisco for carbon fixation.

d)

grow better under cool, moist conditions.

122.

In photosynthetic cells, synthesis of ATP occurs during

a)

photosynthesis only

b)

cellular respiration only

c)

both photosynthesis and cellular respiration

d)

photophosphorylation only

123.

RuBisCO is the most abundant enzyme on the planet.

a)

True

b)

False

124.

What is the name of a pigment-containing complex found in a thylakoid?

a)

chlorophyll a

b)

photosystem

c)

grana

d)

stroma

125.
Which step of cellular respiration makes the most ATP?
a)
Glycolysis
b)
Krebs Cycle
c)
Electron Transport Chain
d)
Light Dependent Reactions
126.
The theory of Endosymbiosis explains
a)
The origin of eukaryotes
b)
How species develop
c)
How bacteria live
d)
Why cells rely on one another
127.
This organelle could likely be found in 
a)
plant cells only.
b)
animal cells only.
c)
prokaryotes only.
d)
plant and animal cells.
128.
What gas is causing the balloons to inflate?
a)
oxygen
b)
nitrogen
c)
carbon dioxide
d)
carbon monoxide
129.
In glycolysis, glucose is converted into two molecules of _____. 
a)
citric acid
b)
oxaloacetic acid
c)
pyruvic acid
d)
Acetyl CoA
130.
In aerobic respiration, the 2 pyruvic acid have to be changed to Acetyl CoA to enter
a)
the citric acid cycle 
b)
alcoholic fermentation
c)
lactic acid fermentation
d)
the ETC
131.
Where in the cell does aerobic respiration take place?
a)
Nucleus
b)
Cytoplasm
c)
Mitochondria
d)
Cell membrane
132.
Which process takes place in the presence of oxygen and produces nearly 20 times as much as ATP as glycolysis alone?
a)
photosynthesis
b)
lactic acid fermentation
c)
aerobic respiration
d)
alcoholic fermentation
133.
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.
134.
What function does ATP carry out in living things?
a)
aids in protein folding and coiling
b)
used to capture and transfer energy
c)
identifies DNA start sequences for transcription
d)
helps maintain the fluidity of cell membranes
135.
What are the reactants in the equation for cellular respiration?
a)
oxygen and lactic acid
b)
carbon dioxide and water
c)
glucose and oxygen
d)
water and glucose
136.
Adenosine triphosphate is more commonly known as
a)
ADP
b)
ATP
c)
DNA
d)
Sugar
137.
Which of the following is NOT produced during glycolysis?
a)
Oxygen
b)
NADH
c)
ATP
d)
Pyruvate
138.
The number of ATP molecules produced out of Krebs Cycle is:
a)
2
b)
3
c)
4
d)
0
139.
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
140.
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
141.
ATP is formed from photosynthesis and cellular respiration
a)
true
b)
false
142.
Where does glycolysis occur?
a)
Inner mitochondrial membrane
b)
Mitochondrial Matrix
c)
Cytosol
d)
At a ribosome
143.
NADH is a ______ form of NAD+.
a)
Reduced
b)
Oxidized
c)
Catabolized
d)
Hydrolized
144.
Which phase of glycolysis do we see the input of ATP?
a)
Cleavage
b)
Energy Investment
c)
Energy Liberation
d)
None of these
145.
What enzyme in the ETC is responsible for generating the ATP molecules?
a)
ATPase
b)
ATP synthase
c)
Hexokinase
d)
none of the above
146.
Where does ETC occur?
a)
Mitochondrial matrix
b)
Outer mitochondrial membrane
c)
Inner mitochondrial membrane
d)
Cytosol
147.
site of ATP synthase
a)
1
b)
2
c)
3
d)
4
148.
site of the krebs cycle
a)
1
b)
2
c)
3
d)
4
149.
Which gas is a product released during photosynthesis that humans need for survival?
a)
Carbon dioxide
b)
neon
c)
nitrogen
d)
oxygen
150.
When is Oxygen taken in by the cells?
a)
Kreb's Cycle
b)
Calvin Cycle
c)
ETC
151.
When is CO2 released?
a)
Kreb's Cycle
b)
Calvin Cycle
c)
ETC
152.
Yeast can undergo respiration to produce carbon dioxide, but what other product does it make?
a)
lactic acid
b)
alcohol
c)
hydrogen 
d)
water
153.
Cellular Respiration's goal is to
a)
make water
b)
make ATP
c)
make glucose
d)
make  oxygen
154.
Which of the following molecules is NOT a byproduct of cellular respiration? 
a)
CO2
b)
Heat
c)
H2O
d)
ATP
155.
Which molecule is not an important molecule regarding Cellular Respiration? 
a)
H2O
b)
NADH
c)
O2
d)
CO2
156.
Which process does not occur in aerobic conditions? 
a)
Fermentation
b)
Pyruvate Oxidation
c)
Citric Acid Cycle or Krebs cycle 
d)
Oxidative Phosphorylation 
157.
What are the products produced by this organelle?
a)
water and glucose
b)
CO2, H2O and ATP
c)
CO2, Glucose and H2O
d)
Glucose and O2
158.
Which of the following is the correct equation for aerobic cellular respiration?
a)
6CO2 + 6H2O     --->   C6H12O6 + 6O2 + ATP
b)
6O2 + C6H12O6  ---> 6H2O + 6CO2 + ATP
c)
C6H12O6  + 6H2O ---> 6CO2 + 6O2 + ATP
d)
6O2 + 6H2O ---> C6H12O6 + 6CO2 + ATP
159.
This is needed in the Electron Transport Chain to attract/accept electrons and produce water. 
a)
NADH
b)
O2
c)
CO2
d)
Pyruvate
160.
Which step of cellular respiration forms a hydrogen ion gradient?
a)
glycolysis
b)
fermentation
c)
the Kreb's cycle
d)
ETC
161.
Which of the following is NOT true of the Kreb's cycle?
a)
glucose is broken down into pyruvate
b)
carbon dioxide is released as a byproduct
c)
NADH and FADH2 are produced
d)
pyruvate is broken down
162.

____________ & _________________ are organelles that arose from endosymbiosis.

a)

Rough ER & Smooth ER

b)

Mitochondria & Flagellum

c)

Chloroplast & Mitochondria

d)

Chloroplast and Golgi apparatus

163.

Aerobic respiration yields about ___ ATP molecules per glucose, whereas anaerobic respiration yields ____ ATP molecules per glucose.

a)

38; 2

b)

2; 38

c)

6; 2

d)

38; 18

164.

Aerobic respiration produces how many ATP molecules

a)

2

b)

26

c)

38

d)

50

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