Question 1

Reduction is the gain of electrons.

Accepted Answer

A) True 
 B)False

Question 2

Oxidation is the loss of electrons.

Accepted Answer

A) True 
 B)False

Question 3

If you were looking for a card describing the breakdown of glucose to carbon dioxide and water,you would look in a drawer labelled with what information?

Accepted Answer

A)  takes up energy, photosynthesis 
B)  takes up energy, cellular respiration 
C)  releases energy, photosynthesis 
D)  releases energy, cellular respiration 
E)  No answer is correct 
A)  takes up energy, photosynthesis 
B)  takes up energy, cellular respiration 
C)  releases energy, photosynthesis 
D)  releases energy, cellular respiration 
E)  No answer is correct

Question 4

-The two data curves on the figure illustrate that

Accepted Answer

A)  temperature ranges are not the same for all enzyme activity. 
B)  temperature is not related to enzyme efficiency. 
C)  optimal temperature ranges are the same for all enzymes. 
D)  pH is not related to enzyme efficiency. 
E)  All answers are correct. 
A)  temperature ranges are not the same for all enzyme activity. 
B)  temperature is not related to enzyme efficiency. 
C)  optimal temperature ranges are the same for all enzymes. 
D)  pH is not related to enzyme efficiency. 
E)  All answers are correct.

Question 5

Studies of fireflies show that as they produce light,they constantly recycle ATP.Why might this be?

Accepted Answer

A)  ATP breakdown releases light. 
B)  ATP is light-sensitive. 
C)  ATP powers light production in fireflies. 
D)  Fireflies need ATP for other processes. 
E)  No answer is correct. 
A)  ATP breakdown releases light. 
B)  ATP is light-sensitive. 
C)  ATP powers light production in fireflies. 
D)  Fireflies need ATP for other processes. 
E)  No answer is correct.

Question 6

Oxidation-reduction reactions

Accepted Answer

A)  transfer electrons from one molecule to another. 
B)  are not used by living cells. 
C)  transfer protons from one molecule to another. 
D)  reduce the amount of oxygen in the cell. 
E)  increase the amount of oxygen in the cell. 
A)  transfer electrons from one molecule to another. 
B)  are not used by living cells. 
C)  transfer protons from one molecule to another. 
D)  reduce the amount of oxygen in the cell. 
E)  increase the amount of oxygen in the cell.

Question 7

Which of the following are examples of kinetic energy?

Accepted Answer

A)  electrons moving through the electron transport chain, protons moving through ATP synthase 
B)  electrons in chemical bonds, proton gradient, ATP 
C)  electrons moving through the electron transport chain, proton gradient 
D)  protons moving through ATP synthase, ATP 
E)  All answer choices are correct. 
A)  electrons moving through the electron transport chain, protons moving through ATP synthase 
B)  electrons in chemical bonds, proton gradient, ATP 
C)  electrons moving through the electron transport chain, proton gradient 
D)  protons moving through ATP synthase, ATP 
E)  All answer choices are correct.

Question 8

If a drug is designed to denature enzymes involved in digesting phenylalanine,why would patients treated with this drug develop phenylketonuria?

Accepted Answer

A)  They lack an enzyme to break down phenylalanine. 
B)  They lack an enzyme to produce phenylalanine. 
C)  They produce too much phenylalanine. 
D)  They lack an inhibitor of an enzyme to break down phenylalanine. 
E)  They eat more phenylalanine than most people. 
A)  They lack an enzyme to break down phenylalanine. 
B)  They lack an enzyme to produce phenylalanine. 
C)  They produce too much phenylalanine. 
D)  They lack an inhibitor of an enzyme to break down phenylalanine. 
E)  They eat more phenylalanine than most people.

Question 9

The chemical formula for glucose is

Accepted Answer

A)  C₆H₆O₆. 
B)  C₁₂H₆O₁₂. 
C)  C₁₂H₂₂O₁₁. 
D)  C₆H₆O₁₂. 
E)  C₆H₁₂O₆. 
A)  C₆H₆O₆. 
B)  C₁₂H₆O₁₂. 
C)  C₁₂H₂₂O₁₁. 
D)  C₆H₆O₁₂. 
E)  C₆H₁₂O₆.

Question 10

In the section "Investigating Life: Does Natural Selection Maintain Cystic Fibrosis?," those with the genetic mutation in the protein are resistant to cholera infections.What did the scientists hypothesize about the relationship between cystic fibrosis and cholera resistance?

Accepted Answer

A)  Carriers with one copy of the defective CFTR gene have decreased resistance to cholera compared to those with no defective copies. 
B)  These individuals were exposed to cholera, causing mutations in their CFTR gene that can then be passed on to their children. 
C)  Carriers will be more likely to have children who develop cystic fibrosis. 
D)  Carriers with one copy of the defective CFTR gene have increased resistance to cholera compared to those with no defective copies. 
E)  Only carriers would be able to survive exposure to cholera. 
A)  Carriers with one copy of the defective CFTR gene have decreased resistance to cholera compared to those with no defective copies. 
B)  These individuals were exposed to cholera, causing mutations in their CFTR gene that can then be passed on to their children. 
C)  Carriers will be more likely to have children who develop cystic fibrosis. 
D)  Carriers with one copy of the defective CFTR gene have increased resistance to cholera compared to those with no defective copies. 
E)  Only carriers would be able to survive exposure to cholera.

Question 11

-The vertical drop slightly after the peak of each curve on the figure illustrates

Accepted Answer

A)  that enzymes will not work if temperatures are too hot (or too cold). 
B)  an increased rate of reaction. 
C)  a decreased temperature. 
D)  that temperatures only affect enzymes up to a specific temperature. 
E)  that enzymes are most efficient at cold temperatures. 
A)  that enzymes will not work if temperatures are too hot (or too cold). 
B)  an increased rate of reaction. 
C)  a decreased temperature. 
D)  that temperatures only affect enzymes up to a specific temperature. 
E)  that enzymes are most efficient at cold temperatures.

Question 12

Examples of potential energy include

Accepted Answer

A)  chemical bonds and concentration gradients. 
B)  light and chemical bonds. 
C)  quartz crystals vibrating in a wristwatch. 
D)  soil heated by sunlight. 
E)  light and the motion of a muscle. 
A)  chemical bonds and concentration gradients. 
B)  light and chemical bonds. 
C)  quartz crystals vibrating in a wristwatch. 
D)  soil heated by sunlight. 
E)  light and the motion of a muscle.

Question 13

If you had to grade an exam question about oxidation-reduction reactions,you would give the most points if a student said that they

Accepted Answer

A)  never occur at the same time. 
B)  remove electrons from both molecules involved. 
C)  remove protons from one molecule and join them to another molecule. 
D)  occur simultaneously. 
E)  remove oxygen from the cell. 
A)  never occur at the same time. 
B)  remove electrons from both molecules involved. 
C)  remove protons from one molecule and join them to another molecule. 
D)  occur simultaneously. 
E)  remove oxygen from the cell.

Question 14

The most common way for energy-absorbing reactions to be powered in cells is for them to be coupled with the breakdown of ATP.

Accepted Answer

A) True 
 B)False

Question 15

Phagocytosis is an example of

Accepted Answer

A)  exocytosis. 
B)  passive transport. 
C)  simple diffusion. 
D)  endocytosis. 
E)  facilitated diffusion. 
A)  exocytosis. 
B)  passive transport. 
C)  simple diffusion. 
D)  endocytosis. 
E)  facilitated diffusion.

Question 16

Whenever ATP is produced by a chemical reaction some energy is lost into the surroundings as heat.

Accepted Answer

A) True 
 B)False

Question 17

The area on the enzyme where the substrate binds is called

Accepted Answer

A)  an active site. 
B)  a binding pocket. 
C)  a reaction site. 
D)  a catalyst site. 
E)  an analog. 
A)  an active site. 
B)  a binding pocket. 
C)  a reaction site. 
D)  a catalyst site. 
E)  an analog.

Question 18

In the section "Investigating Life: Does Natural Selection Maintain Cystic Fibrosis?," why does water leave the cell by osmosis after the active transport of chloride ions out of the cell by CFTR?

Accepted Answer

A)  The cell is now in a hypertonic solution. 
B)  The cell is now in a hypotonic solution. 
C)  The cell is now in an isotonic solution. 
D)  The cell needs to regenerate the ATP used in active transport. 
E)  The cell must pump out water to avoid bursting. 
A)  The cell is now in a hypertonic solution. 
B)  The cell is now in a hypotonic solution. 
C)  The cell is now in an isotonic solution. 
D)  The cell needs to regenerate the ATP used in active transport. 
E)  The cell must pump out water to avoid bursting.

Question 19

Reactions that take up energy proceed spontaneously.

Accepted Answer

A) True 
 B)False

Question 20

A bowl of sugar water is very stable.If you feed it to cells it is rapidly broken down into carbon dioxide,water,and ATP.What is the best explanation for this reaction?

Accepted Answer

A)  Enzymes in the cells catalyze the breakdown of the glucose. 
B)  Cells use energy to break down the glucose. 
C)  Glucose becomes more chemically reactive inside of  cells. 
D)  Glucose cannot be broken down outside of cells. 
E)  Glucose is removed from the cells by active transport. 
A)  Enzymes in the cells catalyze the breakdown of the glucose. 
B)  Cells use energy to break down the glucose. 
C)  Glucose becomes more chemically reactive inside of  cells. 
D)  Glucose cannot be broken down outside of cells. 
E)  Glucose is removed from the cells by active transport.

Exam 4: The Energy of Life

Reduction is the gain of electrons.

Oxidation is the loss of electrons.

If you were looking for a card describing the breakdown of glucose to carbon dioxide and water,you would look in a drawer labelled with what information?

-The two data curves on the figure illustrate that

Studies of fireflies show that as they produce light,they constantly recycle ATP.Why might this be?

Oxidation-reduction reactions

Which of the following are examples of kinetic energy?

If a drug is designed to denature enzymes involved in digesting phenylalanine,why would patients treated with this drug develop phenylketonuria?

The chemical formula for glucose is

In the section "Investigating Life: Does Natural Selection Maintain Cystic Fibrosis?," those with the genetic mutation in the protein are resistant to cholera infections.What did the scientists hypothesize about the relationship between cystic fibrosis and cholera resistance?

-The vertical drop slightly after the peak of each curve on the figure illustrates

Examples of potential energy include

If you had to grade an exam question about oxidation-reduction reactions,you would give the most points if a student said that they

The most common way for energy-absorbing reactions to be powered in cells is for them to be coupled with the breakdown of ATP.

Phagocytosis is an example of

Whenever ATP is produced by a chemical reaction some energy is lost into the surroundings as heat.

The area on the enzyme where the substrate binds is called

In the section "Investigating Life: Does Natural Selection Maintain Cystic Fibrosis?," why does water leave the cell by osmosis after the active transport of chloride ions out of the cell by CFTR?

Reactions that take up energy proceed spontaneously.

A bowl of sugar water is very stable.If you feed it to cells it is rapidly broken down into carbon dioxide,water,and ATP.What is the best explanation for this reaction?

The Scientific Study of Life

The Chemistry of Life

Cells

Photosynthesis

Respiration and Fermentation

DNA Structure and Gene Function

DNA Replication,Binary Fission,and Mitosis

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Populations

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

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