Question 1

Only a small amount of ATP is produced during glycolysis because most of the energy stored in a glucose molecule remains in the bonds of

Accepted Answer

A)  carbon dioxide. 
B)  PGAL. 
C)  NADH. 
D)  pyruvate. 
E)  None of the answer choices are correct. 
A)  carbon dioxide. 
B)  PGAL. 
C)  NADH. 
D)  pyruvate. 
E)  None of the answer choices are correct. D

Question 2

Cellular aerobic respiration includes glycolysis,the Krebs cycle,and electron transport.

Accepted Answer

A) True 
 B)False  True

Question 3

Anaerobic respiration is most common in

Accepted Answer

A)  animals. 
B)  archaeans. 
C)  fungi. 
D)  plants. 
A)  animals. 
B)  archaeans. 
C)  fungi. 
D)  plants. B

Question 4

The rate of carbon dioxide production by Cyclocephala colasi beetles was used to measure their

Accepted Answer

A)  rate of photosynthesis. 
B)  ability to pollinate flowers. 
C)  level of activity. 
D)  rate of respiration. 
E)  body temperature. 
A)  rate of photosynthesis. 
B)  ability to pollinate flowers. 
C)  level of activity. 
D)  rate of respiration. 
E)  body temperature.

Question 5

During glycolysis molecules of glucose are

Accepted Answer

A)  broken down in oxidation, liberating the carbon atoms as CO2. 
B)  bonded in a reduction to form three molecules of pyruvate. 
C)  broken down into three molecules of pyruvate. 
D)  bonded covalently to form two molecules of pyruvate. 
E)  broken down by enzymes to form two molecules of pyruvate. 
A)  broken down in oxidation, liberating the carbon atoms as CO2. 
B)  bonded in a reduction to form three molecules of pyruvate. 
C)  broken down into three molecules of pyruvate. 
D)  bonded covalently to form two molecules of pyruvate. 
E)  broken down by enzymes to form two molecules of pyruvate.

Question 6

The compound that enters the Krebs cycle as a reactant is

Accepted Answer

A)  acetyl CoA. 
B)  ATP. 
C)  PGAL. 
D)  pyruvate. 
E)  ATP synthase. 
A)  acetyl CoA. 
B)  ATP. 
C)  PGAL. 
D)  pyruvate. 
E)  ATP synthase.

Question 7

On a class field trip,students swabbed,dug,and dipped samples of life from numerous places around campus.Back in lab,one of the organisms found was unknown to the professor,or any reference books available.It came from the edge of a marsh,and the sample smelled of hydrogen sulfide (rotten eggs).The single cells were found to survive only in a container that had sulfate in it,but also had the oxygen removed by burning a candle.This is likely an organism that uses _____ for cellular respiration.

Accepted Answer

A)  alcohol fermentation 
B)  lactic acid fermentation 
C)  aerobic respiration 
D)  only glycolysis 
E)  anaerobic respiration 
A)  alcohol fermentation 
B)  lactic acid fermentation 
C)  aerobic respiration 
D)  only glycolysis 
E)  anaerobic respiration

Question 8

Fermentation is most common in

Accepted Answer

A)  fungi, decomposing dead plants. 
B)  human muscle cells. 
C)  both human muscle cells, and intestinal bacteria. 
D)  bacteria, in mammal intestines. 
E)  plants, at night. 
A)  fungi, decomposing dead plants. 
B)  human muscle cells. 
C)  both human muscle cells, and intestinal bacteria. 
D)  bacteria, in mammal intestines. 
E)  plants, at night.

Question 9

The products of cellular respiration are

Accepted Answer

A)  glucose, water, and ATP. 
B)  carbon dioxide, glucose, and water. 
C)  oxygen, ATP, and water. 
D)  carbon dioxide, water, and ATP. 
E)  glucose, carbon dioxide, and ATP. 
A)  glucose, water, and ATP. 
B)  carbon dioxide, glucose, and water. 
C)  oxygen, ATP, and water. 
D)  carbon dioxide, water, and ATP. 
E)  glucose, carbon dioxide, and ATP.

Question 10

The three main biochemical pathways of cellular respiration are

Accepted Answer

A)  Calvin cycle, Krebs cycle, and light reactions. 
B)  light reactions, carbon reactions, and electron transport. 
C)  glycolysis, Krebs cycle, and electron transport. 
D)  glycolysis, light reactions, and Calvin cycle. 
E)  Krebs cycle, Calvin cycle, and electron transport. 
A)  Calvin cycle, Krebs cycle, and light reactions. 
B)  light reactions, carbon reactions, and electron transport. 
C)  glycolysis, Krebs cycle, and electron transport. 
D)  glycolysis, light reactions, and Calvin cycle. 
E)  Krebs cycle, Calvin cycle, and electron transport.

Question 11

The space and fluid enclosed by the highly folded inner mitochondrial membrane is the

Accepted Answer

A)  outer membrane. 
B)  nucleus. 
C)  cytoplasm. 
D)  None of the answer choices are correct. 
E)  matrix. 
A)  outer membrane. 
B)  nucleus. 
C)  cytoplasm. 
D)  None of the answer choices are correct. 
E)  matrix.

Question 12

The process of a high-energy "donor" molecule physically transferring a phosphate group to ADP is called

Accepted Answer

A)  electron transport. 
B)  glycolysis. 
C)  photosynthesis. 
D)  oxidative phosphorylation. 
E)  substrate-level phosphorylation. 
A)  electron transport. 
B)  glycolysis. 
C)  photosynthesis. 
D)  oxidative phosphorylation. 
E)  substrate-level phosphorylation.

Question 13

Molecules called uncouplers allow protons to cross the inner mitochondrial membrane.What effect would this have on ATP production in the mitochondria?

Accepted Answer

A)  ATP production would not change, because protons cross the outer mitochondrial membrane to produce ATP. 
B)  ATP production would increase, because this would spontaneously establish a proton gradient, for powering ATP synthase. 
C)  ATP production would increase, because this would make more oxygen available in the mitochondrial matrix. 
D)  ATP production would decrease, because electrons would not be able to move through the electron transport chain. 
E)  ATP production would decrease, because the proton gradient, for powering ATP synthase, would dissipate. 
A)  ATP production would not change, because protons cross the outer mitochondrial membrane to produce ATP. 
B)  ATP production would increase, because this would spontaneously establish a proton gradient, for powering ATP synthase. 
C)  ATP production would increase, because this would make more oxygen available in the mitochondrial matrix. 
D)  ATP production would decrease, because electrons would not be able to move through the electron transport chain. 
E)  ATP production would decrease, because the proton gradient, for powering ATP synthase, would dissipate.

Question 14

Chemiosmotic phosphorylation occurs when protons pass through ATP synthase and combine with oxygen to make water.

Accepted Answer

A) True 
 B)False

Question 15

The sequence of membrane proteins of the electron transport chain includes three transport proteins and other electron transport proteins.As the electrons from original glucose molecules move through the proteins,work is done.The electron transport chain produces a(n)_____________ concentration gradient.

Accepted Answer

A)  NADH 
B)  ATP 
C)  electron 
D)  proton 
E)  oxygen 
A)  NADH 
B)  ATP 
C)  electron 
D)  proton 
E)  oxygen

Question 16

Consider when an African rock python eats a Thomson's gazelle and begins breaking the gazelle down into component molecules with digestive acids.The digestion described is an example of cellular respiration.

Accepted Answer

A) True 
 B)False

Question 17

Animals are net

Accepted Answer

A)  O2 and CO2 consumers. 
B)  O2 producers and CO2 consumers. 
C)  O2 consumers and CO2 producers. 
D)  O2 and CO2 producers. 
A)  O2 and CO2 consumers. 
B)  O2 producers and CO2 consumers. 
C)  O2 consumers and CO2 producers. 
D)  O2 and CO2 producers.

Question 18

Anaerobic respiration uses oxygen as its final electron acceptor at the end of the electron transport chain.

Accepted Answer

A) True 
 B)False

Question 19

The reactions in glycolysis are reversible,however,the conversion of pyruvate into acetyl CoA is irreversible in animal cells.Can fatty acids be converted back into carbohydrates?

Accepted Answer

A)  No, because they enter metabolism as acetyl CoA. 
B)  No, because they enter metabolism as pyruvate. 
C)  Yes, because they enter metabolism as pyruvate. 
D)  Yes, because they enter metabolism in the Krebs cycle. 
E)  Yes, because they enter metabolism as acetyl CoA. 
A)  No, because they enter metabolism as acetyl CoA. 
B)  No, because they enter metabolism as pyruvate. 
C)  Yes, because they enter metabolism as pyruvate. 
D)  Yes, because they enter metabolism in the Krebs cycle. 
E)  Yes, because they enter metabolism as acetyl CoA.

Question 20

Philodendron flowers have to use a lot of energy to attract beetles as pollinators.This is similar to the energy used by many other flowering plants to produce ____ in order to attract pollinators.

Accepted Answer

A)  seeds 
B)  leaves 
C)  pollen 
D)  spores 
E)  nectar 
A)  seeds 
B)  leaves 
C)  pollen 
D)  spores 
E)  nectar

Exam 6: How Cells Release Energy

Only a small amount of ATP is produced during glycolysis because most of the energy stored in a glucose molecule remains in the bonds of

Cellular aerobic respiration includes glycolysis,the Krebs cycle,and electron transport.

Anaerobic respiration is most common in

The rate of carbon dioxide production by Cyclocephala colasi beetles was used to measure their

During glycolysis molecules of glucose are

The compound that enters the Krebs cycle as a reactant is

Fermentation is most common in

The products of cellular respiration are

The three main biochemical pathways of cellular respiration are

The space and fluid enclosed by the highly folded inner mitochondrial membrane is the

The process of a high-energy "donor" molecule physically transferring a phosphate group to ADP is called

Molecules called uncouplers allow protons to cross the inner mitochondrial membrane.What effect would this have on ATP production in the mitochondria?

Chemiosmotic phosphorylation occurs when protons pass through ATP synthase and combine with oxygen to make water.

Consider when an African rock python eats a Thomson's gazelle and begins breaking the gazelle down into component molecules with digestive acids.The digestion described is an example of cellular respiration.

Animals are net

Anaerobic respiration uses oxygen as its final electron acceptor at the end of the electron transport chain.

The reactions in glycolysis are reversible,however,the conversion of pyruvate into acetyl CoA is irreversible in animal cells.Can fatty acids be converted back into carbohydrates?

Philodendron flowers have to use a lot of energy to attract beetles as pollinators.This is similar to the energy used by many other flowering plants to produce ____ in order to attract pollinators.

The Scientific Study of Life

The Chemistry of Life

Cell Structure and Function

The Energy of Life

Photosynthesis

DNA Structure and Gene Function

DNA Replication, mitosis, and the Cell Cycle

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

The Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

The Origin and History of Life

Viruses

Bacteria and Archaea

Protists

Plants

Fungi

Animals

Plant Form and Function

Plant Nutrition and Transport

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System

The Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory System

The Respiratory System

Digestion and Nutrition

Regulation of Temperature and Body Fluids

The Immune System

Animal Reproduction and Development

Animal Behavior

Population Ecology

Communities and Ecosystems

Biomes

Preserving Biodiversity

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