Question 1

The Law of Thermodynamics that states that energy cannot be created or destroyed is:

Accepted Answer

A)  The First Law of Thermodynamics
B)  The Second Law of Thermodynamics
C)  The Third Law of Thermodynamics
D)  The Fourth Law of ThermodynamicsE) A) and C)
F) All of the above

Question 2

A drug binds to the active site of an enzyme.If it is bound to the active site of the enzyme, it prevents substrate binding.This drug would be considered a

Accepted Answer

A)  noncompetitive inhibitor.
B)  allosteric inhibitor.
C)  allosteric activator.
D)  competitive inhibitor.E) None of the above
F) A) and B)

Question 3

Enzyme 1 converts substrate A into product B. Is this an example of a metabolic pathway?

Accepted Answer

A)  Yes.This is a metabolic pathway that includes feedback inhibition.
B)  No.This only describes one chemical reaction.A metabolic pathway includes multiple chemical reactions.
C)  Yes.This is a simple metabolic pathway.D) B) and C)
E) A) and B)

Question 4

The inorganic non-protein components that participate in enzyme catalysis are known as

Accepted Answer

A)  coenzymes.
B)  cofactors.
C)  products.
D)  substrates.E) B) and D)
F) B) and C)

Question 5

If you were able to increase the kinetic energy of the molecules inside your body, how would this affect your body temperature?

Accepted Answer

A)  It would increase
B)  It would decrease
C)  It would remain the sameD) A) and B)
E) A) and C)

Question 6

While conducting an experiment, you realize that a competitive inhibitor was interfering with your reaction.How could you overcome this problem?

Accepted Answer

A)  Add a non-competitive inhibitor to the reaction.
B)  Add a cofactor to the reaction.
C)  Increase the concentration of the correct substrate in the reaction.
D)  Add an allosteric activator to the reaction.E) B) and C)
F) A) and B)

Question 7

Glucose is broken down through cellular respiration, which involves a large number of chemical reactions.At the end of the cellular respiration process, a large number of ATP molecules are generated, but yet, not all of the possible energy that is contained in a molecule of glucose can be harnessed through these chemical reactions to generate ATP.In other words, during cellular respiration, not all of the energy that is contained in a molecule of glucose is converted into the energy stored in ATP.What happens to the remaining energy?

Accepted Answer

A)  It is destroyed
B)  It is used to drive exergonic reactions
C)  It is donated to molecules in the cellular respiration process to reduce them
D)  It is lost as heat It is lost as heat.In fact, this is one of the ways we maintain our body temperature.E) B) and D)
F) C) and D)

Question 8

You eat a bowl of beans as part of your dinner.As you digest the beans, the proteins that are present get broken down to their component amino acids.As your body destroys the macromolecules that were present in the beans, is the energy present in those molecules destroyed?

Accepted Answer

A)  Yes.By breaking down these macromolecules, some of the energy they contained is destroyed.
B)  No.While the vast majority of the energy contained in these macromolecules is converted to heat, it is not actually destroyed.
C)  No.The energy contained within these macromolecules is converted into other forms of chemical energy and kinetic energy, though some is lost as heat.
D)  No.Breaking down molecules does not lead to the release of energy.E) A) and C)
F) B) and C)

Question 9

In an enzyme-catalyzed reaction, the reactant is called the

Accepted Answer

A)  coenzyme
B)  catalyst
C)  substrate
D)  productE) B) and C)
F) C) and D)

Question 10

When an atom or molecule gains one or more electrons, it is said to be:

Accepted Answer

A)  energized.
B)  oxidized.
C)  polarized.
D)  reduced.E) A) and B)
F) B) and C)

Question 11

If the  Δ\DeltaΔ G of a reaction was -31.45 kJoules, you would know that:

Accepted Answer

A)  the products have more free energy than the reactants.
B)  the reaction requires an energy input of 31.45 kJoules to proceed.
C)  the reaction most likely leads to development of a more ordered system.
D)  the reaction is spontaneous. E) B) and D)
F) None of the above

Question 12

In a chemical reaction, glyceraldehyde-3-phosphate + NAD+ yields 1,3-bisphosphoglycerate + NADH.In this reaction, what happened to NAD+?

Accepted Answer

A)  It was oxidized to form NADH
B)  It was reduced to form NADH
C)  It was activated to form NADH
D)  it served as an enzyme to catalyze the reaction, and at the end of the reaction formed NADHE) B) and D)
F) None of the above

Exam 6: Energy and Metabolism

In an enzyme-catalyzed reaction, the reactant is called the

Correct Answer
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A drug binds to the active site of an enzyme.If it is bound to the active site of the enzyme, it prevents substrate binding.This drug would be considered a

Correct Answer
verified

You eat a bowl of beans as part of your dinner.As you digest the beans, the proteins that are present get broken down to their component amino acids.As your body destroys the macromolecules that were present in the beans, is the energy present in those molecules destroyed?

Correct Answer
verified

When an atom or molecule gains one or more electrons, it is said to be:

Correct Answer
verified

Correct Answer
verified

If you were able to increase the kinetic energy of the molecules inside your body, how would this affect your body temperature?

Correct Answer
verified

The Law of Thermodynamics that states that energy cannot be created or destroyed is:

Correct Answer
verified

If the $\Delta$ G of a reaction was -31.45 kJoules, you would know that:

Correct Answer
verified

While conducting an experiment, you realize that a competitive inhibitor was interfering with your reaction.How could you overcome this problem?

Correct Answer
verified

In a chemical reaction, glyceraldehyde-3-phosphate + NAD⁺ yields 1,3-bisphosphoglycerate + NADH.In this reaction, what happened to NAD⁺?

Correct Answer
verified

The inorganic non-protein components that participate in enzyme catalysis are known as

Correct Answer
verified

Enzyme 1 converts substrate A into product B. Is this an example of a metabolic pathway?

Correct Answer
verified

Exam 6: Energy and Metabolism

In an enzyme-catalyzed reaction, the reactant is called the

Correct AnswerverifiedShow Answer

A drug binds to the active site of an enzyme.If it is bound to the active site of the enzyme, it prevents substrate binding.This drug would be considered a

Correct AnswerverifiedShow Answer

You eat a bowl of beans as part of your dinner.As you digest the beans, the proteins that are present get broken down to their component amino acids.As your body destroys the macromolecules that were present in the beans, is the energy present in those molecules destroyed?

Correct AnswerverifiedShow Answer

When an atom or molecule gains one or more electrons, it is said to be:

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

If you were able to increase the kinetic energy of the molecules inside your body, how would this affect your body temperature?

Correct AnswerverifiedShow Answer

The Law of Thermodynamics that states that energy cannot be created or destroyed is:

Correct AnswerverifiedShow Answer

If the Δ\DeltaΔ G of a reaction was -31.45 kJoules, you would know that:

Correct AnswerverifiedShow Answer

While conducting an experiment, you realize that a competitive inhibitor was interfering with your reaction.How could you overcome this problem?

Correct AnswerverifiedShow Answer

In a chemical reaction, glyceraldehyde-3-phosphate + NAD+ yields 1,3-bisphosphoglycerate + NADH.In this reaction, what happened to NAD+?

Correct AnswerverifiedShow Answer

The inorganic non-protein components that participate in enzyme catalysis are known as

Correct AnswerverifiedShow Answer

Enzyme 1 converts substrate A into product B. Is this an example of a metabolic pathway?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

If the $\Delta$ G of a reaction was -31.45 kJoules, you would know that:

Correct Answer
verified

Correct Answer
verified

In a chemical reaction, glyceraldehyde-3-phosphate + NAD⁺ yields 1,3-bisphosphoglycerate + NADH.In this reaction, what happened to NAD⁺?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified