Question 1

Which energy association is correct?

Accepted Answer

A)   Kinetic energy is energy of motion.
B)   Water stored behind a dam is an example of kinetic energy.
C)   Energy in the chemical bonds of a molecule is kinetic energy.
D)   Potential energy must be used immediately or it is lost.
E)   Light energy is a form of chemical energy.F) A) and E)
G) B) and D)

Question 2

Which hypothesis,based on the two laws of thermodynamics as applied to cells,would determine if something is a living cell or not?

Accepted Answer

A)   If something uses energy to make itself more organized, then it is alive.
B)   If something is organized, then it is alive.
C)   If something moves, then it is alive.
D)   If something loses heat, then it is alive.
E)   If something uses energy to move, then it is alive.F) B) and E)
G) B) and D)

Question 3

The reason an increase in substrate concentration will not increase the reaction rate indefinitely is because

Accepted Answer

A)   eventually the enzyme will no longer recognize the substrate.
B)   the active site will become saturated with substrate and the enzyme will not be able to go any faster.
C)   another enzyme will take advantage of the excess substrate and use it for a different reaction.
D)   enzymes cannot be used over and over in a reaction.
E)   the enzyme will become denatured.F) B) and C)
G) A) and E)

Question 4

Fatty acids are a more concentrated source of energy compared to a carbohydrate.

Accepted Answer

A) True 
 B)False

Question 5

The main reason that ATP is considered the energy currency in cells is because it

Accepted Answer

A)   is a small molecule.
B)   carries a positive charge.
C)   contains accessible energy in phosphate bonds.
D)   contains an adenine base.
E)   contains a sugar ring.F) B) and D)
G) A) and D)

Question 6

Which of the following is NOT a correct statement about the second law of thermodynamics and entropy?

Accepted Answer

A)   The amount of disorder in the universe is always increasing.
B)   To maintain organization of a cell, a continual input of energy is required.
C)   Living cells without energy would become less organized.
D)   While the total amount of energy in a system is unchanged, energy lost as heat is no longer useful to the cell in doing work.
E)   Carbon dioxide and water tend to form glucose.F) A) and B)
G) C) and D)

Question 7

A piece of meat and a piece of fruit are fed to both a lizard and a person.The extent to which these foods are digested by digestive enzymes along these two gastrointestinal tracts varies.Which of the following is not a reason for the variation in digestion?

Accepted Answer

A)   pH of the digestive organs
B)   body temperature
C)   variation in enzymes produced
D)   the amount of protein in the meat and fruit
E)   bacteria present in the digestive tractF) B) and E)
G) A) and B)

Question 8

The term "metabolism" refers to all of the chemical reactions that occur in a cell.

Accepted Answer

A) True 
 B)False

Question 9

The unique value of the ATP molecule is that when glucose is broken down during cellular respiration,all of the free energy of glucose is transformed into ATP.

Accepted Answer

A) True 
 B)False

Question 10

What is a metabolic reaction called that involves one reaction releasing energy to provide energy for a second reaction that requires energy?

Accepted Answer

A)   an endergonic reaction.
B)   an exergonic reaction.
C)   a coupled reaction.
D)   a reversible reaction.
E)   anabolism.F) None of the above
G) A) and D)

Question 11

Which of the following statements is true about enzymes?

Accepted Answer

A)   Their 3D shape can vary and still be active.
B)   Boiling temperatures do not affect their activity.
C)   They catalyze only one specific type of reaction.
D)   They can associate with a wide variety of substrates.
E)   They are unaffected by changes in pH.F) All of the above
G) B) and D)

Question 12

Explain the difference between an endergonic and an exergonic reaction?

Accepted Answer

An endergonic reaction is one ...

Question 13

Chemical reactions that require the input of energy are

Accepted Answer

A)   exergonic reactions.
B)   endergonic reactions.
C)   coupled reactions.
D)   kinetic reactions.
E)   catabolic reactions.F) None of the above
G) All of the above

Question 14

Enzymes maintain their same shape when they bind to a substrate.

Accepted Answer

A) True 
 B)False

Question 15

The metabolic pathways of photosynthesis and cellular respiration

Accepted Answer

A)   involve the same substrates and therefore the same enzymes.
B)   are exactly the same.
C)   involve oxidation reactions during photosynthesis and reduction reactions during respiration.
D)   involve oxidation reactions during respiration and reduction reactions during photosynthesis.
E)   both involve oxidation and reduction reactions.F) B) and D)
G) A) and E)

Question 16

Explain the factors that will cause a protein to become denatured and what will occur structurally to the protein when it is denatured.

Accepted Answer

The two factors that will denature a pro...

Question 17

The function of an enzyme is to

Accepted Answer

A)   provide the energy for metabolic reactions.
B)   increase the rate of a metabolic reaction.
C)   change the direction of metabolic reactions.
D)   act as a buffer in metabolic reactions.
E)   raise the energy of activation for a reaction.F) None of the above
G) A) and E)

Question 18

Enzymes,coenzymes,and cofactors provide a mechanism for a cell to regulate the metabolism of a large amount of cell products using small quantities of chemicals.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is an example of chemical work within a cell?

Accepted Answer

A)   catabolism
B)   anabolism
C)   moving glucose across the cell membrane
D)   the beating of cilia
E)   the contraction of muscle fibersF) B) and E)
G) D) and E)

Exam 6: Metabolism: Energy and Enzymes

Enzymes maintain their same shape when they bind to a substrate.

Correct Answer
verified

The unique value of the ATP molecule is that when glucose is broken down during cellular respiration,all of the free energy of glucose is transformed into ATP.

Correct Answer
verified

Which hypothesis,based on the two laws of thermodynamics as applied to cells,would determine if something is a living cell or not?

Correct Answer
verified

The function of an enzyme is to

Correct Answer
verified

Which of the following is NOT a correct statement about the second law of thermodynamics and entropy?

Correct Answer
verified

What is a metabolic reaction called that involves one reaction releasing energy to provide energy for a second reaction that requires energy?

Correct Answer
verified

Which of the following is an example of chemical work within a cell?

Correct Answer
verified

Chemical reactions that require the input of energy are

Correct Answer
verified

A piece of meat and a piece of fruit are fed to both a lizard and a person.The extent to which these foods are digested by digestive enzymes along these two gastrointestinal tracts varies.Which of the following is not a reason for the variation in digestion?

Correct Answer
verified

The metabolic pathways of photosynthesis and cellular respiration

Correct Answer
verified

Which energy association is correct?

Correct Answer
verified

The main reason that ATP is considered the energy currency in cells is because it

Correct Answer
verified

Fatty acids are a more concentrated source of energy compared to a carbohydrate.

Correct Answer
verified

Explain the factors that will cause a protein to become denatured and what will occur structurally to the protein when it is denatured.

Correct Answer
verified
The two factors that will denature a pro...
View Answer

Enzymes,coenzymes,and cofactors provide a mechanism for a cell to regulate the metabolism of a large amount of cell products using small quantities of chemicals.

Correct Answer
verified

The reason an increase in substrate concentration will not increase the reaction rate indefinitely is because

Correct Answer
verified

The term "metabolism" refers to all of the chemical reactions that occur in a cell.

Correct Answer
verified

Explain the difference between an endergonic and an exergonic reaction?

Correct Answer
verified
An endergonic reaction is one ...
View Answer

Which of the following statements is true about enzymes?

Correct Answer
verified

Exam 6: Metabolism: Energy and Enzymes

Enzymes maintain their same shape when they bind to a substrate.

Correct AnswerverifiedShow Answer

The unique value of the ATP molecule is that when glucose is broken down during cellular respiration,all of the free energy of glucose is transformed into ATP.

Correct AnswerverifiedShow Answer

Which hypothesis,based on the two laws of thermodynamics as applied to cells,would determine if something is a living cell or not?

Correct AnswerverifiedShow Answer

The function of an enzyme is to

Correct AnswerverifiedShow Answer

Which of the following is NOT a correct statement about the second law of thermodynamics and entropy?

Correct AnswerverifiedShow Answer

What is a metabolic reaction called that involves one reaction releasing energy to provide energy for a second reaction that requires energy?

Correct AnswerverifiedShow Answer

Which of the following is an example of chemical work within a cell?

Correct AnswerverifiedShow Answer

Chemical reactions that require the input of energy are

Correct AnswerverifiedShow Answer

A piece of meat and a piece of fruit are fed to both a lizard and a person.The extent to which these foods are digested by digestive enzymes along these two gastrointestinal tracts varies.Which of the following is not a reason for the variation in digestion?

Correct AnswerverifiedShow Answer

The metabolic pathways of photosynthesis and cellular respiration

Correct AnswerverifiedShow Answer

Which energy association is correct?

Correct AnswerverifiedShow Answer

The main reason that ATP is considered the energy currency in cells is because it

Correct AnswerverifiedShow Answer

Fatty acids are a more concentrated source of energy compared to a carbohydrate.

Correct AnswerverifiedShow Answer

Explain the factors that will cause a protein to become denatured and what will occur structurally to the protein when it is denatured.

Correct AnswerverifiedThe two factors that will denature a pro...View AnswerShow Answer

Enzymes,coenzymes,and cofactors provide a mechanism for a cell to regulate the metabolism of a large amount of cell products using small quantities of chemicals.

Correct AnswerverifiedShow Answer

The reason an increase in substrate concentration will not increase the reaction rate indefinitely is because

Correct AnswerverifiedShow Answer

The term "metabolism" refers to all of the chemical reactions that occur in a cell.

Correct AnswerverifiedShow Answer

Explain the difference between an endergonic and an exergonic reaction?

Correct AnswerverifiedAn endergonic reaction is one ...View AnswerShow Answer

Which of the following statements is true about enzymes?

Correct AnswerverifiedShow Answer

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The two factors that will denature a pro...
View Answer

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Correct Answer
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Correct Answer
verified
An endergonic reaction is one ...
View Answer

Correct Answer
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