Question 1

The form of kinetic energy that refers to the movement of electromagnetic waves is _________ energy.

Accepted Answer

The answer of The form of kinetic energy that refers...

Question 2

The building of complex molecules from simpler ones is described as

Accepted Answer

A)  anabolism.
B)  catabolism.
C)  exergonic.
D)  irreversible.
E)  reversible.F) None of the above
G) B) and C)

Question 3

The sodium level inside and outside of a resting cell is an example of the

Accepted Answer

A)  kinetic energy of sodium rushing out of a cell down its concentration gradient.
B)  kinetic energy of the large difference in sodium concentration on the inside versus the outside of the cell.
C)  potential energy of a concentration gradient,because sodium is more abundant outside the cell.
D)  potential energy of an electron transport chain,because sodium has an extra electron to donate.
E)  conversion of potential energy to kinetic energy,because sodium can never move across the cell membrane and must move across its surface.F) D) and E)
G) None of the above

Question 4

Pancreatic amylase serves its function when it is located in the

Accepted Answer

A)  mouth.
B)  blood.
C)  liver.
D)  stomach.
E)  small intestine.F) A) and D)
G) C) and D)

Question 5

In a redox reaction,when one reactant is oxidized,the other

Accepted Answer

A)  is reduced.
B)  is also oxidized.
C)  is hydrolyzed into a smaller molecule.
D)  releases chemical energy in the form of ATP.
E)  becomes a larger,more complex molecule.F) A) and D)
G) A) and B)

Question 6

Which one of the following choices includes three descriptions that are consistent with each other (that is,that describe the same type of chemical reaction)

Accepted Answer

A)  Anabolic,dehydration,endergonic
B)  Exchange,hydrolysis,endergonic
C)  Catabolic,dehydration,irreversible
D)  Metabolic,synthesis,exergonic
E)  Anabolic,catabolic,dehydrationF) A) and B)
G) C) and E)

Question 7

According to the second law of thermodynamics,when energy is transformed from one kind to another

Accepted Answer

A)  some of it is converted to heat.
B)  some energy is destroyed.
C)  new energy is created.
D)  homeostasis is maintained.
E)  chemical bonds must be broken.F) A) and B)
G) A) and E)

Question 8

During cellular respiration,when glucose is fully disassembled to carbon dioxide and water,the other reactant (with glucose)in the chemical equation is ___________.

Accepted Answer

The answer of During cellular respiration,when glucose is fully disassembled...

Question 9

Glycolysis results in the breakdown of a glucose molecule and the net production of four ATP molecules.

Accepted Answer

A) True 
 B)False

Question 10

Decarboxylation occurs during the intermediate stage of aerobic cellular respiration.

Accepted Answer

A) True 
 B)False

Question 11

When oxygen is low,pyruvate is converted to lactate,while

Accepted Answer

A)  NADH is converted to NAD+.
B)  ATP is converted to AMP.
C)  citrate is converted to pyruvate.
D)  FADH is converted to NADH.
E)  FADH2is reduced to FAD+.F) C) and D)
G) A) and D)

Question 12

At rest,muscle tissue prefers to use _________ molecules as sources of fuel.

Accepted Answer

A)  pyruvate
B)  fatty acid
C)  insulin
D)  protein
E)  simple carbohydrateF) A) and E)
G) A) and B)

Question 13

If oxygen levels drop such that glucose metabolism becomes primarily anaerobic,then the amount of ATP produced per glucose molecule will

Accepted Answer

A)  increase slightly.
B)  remain roughly the same.
C)  be halved.
D)  decrease to much less than half of what it was.E) A) and D)
F) A) and B)

Question 14

Which statement accurately describes the effects of substrate and enzyme concentrations on reaction rate

Accepted Answer

A)  An increase in either substrate or enzyme concentration will increase the reaction rate.
B)  An increase in either substrate or enzyme concentration will decrease the reaction rate.
C)  An increase in substrate concentration increases the reaction rate,but enzyme concentration has no effect.
D)  A decrease in substrate concentration or an increase in enzyme concentration increases the reaction rate.
E)  An increase in substrate concentration or a decrease in enzyme concentration will increase the reaction rate.F) C) and D)
G) A) and B)

Question 15

The energy of motion is known as _________ energy.

Accepted Answer

The answer of The energy of motion is known as...

Question 16

In the absence of the enzyme carbonic anhydrase,the combination of water and carbon dioxide to form carbonic acid does not occur.

Accepted Answer

A) True 
 B)False

Question 17

At temperatures above 40 ∘\circ∘ C (104 ∘\circ∘ CF) in the human body,

Accepted Answer

A)  enzymatic reactions with substrates are more quickly catalyzed.
B)  enzymes denature and reaction rates decrease.
C)  protein flexibility is optimum and reaction rates increase.
D)  protein shape is rigid and reaction rates are constant. E) B) and C)
F) A) and C)

Question 18

Allosteric inhibitors are also called noncompetitive inhibitors.

Accepted Answer

A) True 
 B)False

Question 19

Both pepsin and trypsin are proteins that digest proteins.

Accepted Answer

A) True 
 B)False

Question 20

The enzyme-substrate complex is

Accepted Answer

A)  another name for the active site.
B)  the reactants whose chemical reaction the enzyme catalyzes.
C)  the chemical structure formed when the substrate binds to the active site.
D)  a pocket on the substrate that the enzyme recognizes.E) All of the above
F) A) and C)

Exam 3: Energy,Chemical Reactions,and Cellular Respiration

During cellular respiration,when glucose is fully disassembled to carbon dioxide and water,the other reactant (with glucose)in the chemical equation is ___________.

Correct AnswerverifiedShow Answer

The building of complex molecules from simpler ones is described as

Correct AnswerverifiedShow Answer

Allosteric inhibitors are also called noncompetitive inhibitors.

Correct AnswerverifiedShow Answer

Glycolysis results in the breakdown of a glucose molecule and the net production of four ATP molecules.

Correct AnswerverifiedShow Answer

The enzyme-substrate complex is

Correct AnswerverifiedShow Answer

At rest,muscle tissue prefers to use _________ molecules as sources of fuel.

Correct AnswerverifiedShow Answer

If oxygen levels drop such that glucose metabolism becomes primarily anaerobic,then the amount of ATP produced per glucose molecule will

Correct AnswerverifiedShow Answer

In the absence of the enzyme carbonic anhydrase,the combination of water and carbon dioxide to form carbonic acid does not occur.

Correct AnswerverifiedShow Answer

At temperatures above 40 ∘\circ∘ C (104 ∘\circ∘ CF) in the human body,

Correct AnswerverifiedShow Answer

The energy of motion is known as _________ energy.

Correct AnswerverifiedShow Answer

The sodium level inside and outside of a resting cell is an example of the

Correct AnswerverifiedShow Answer

According to the second law of thermodynamics,when energy is transformed from one kind to another

Correct AnswerverifiedShow Answer

Both pepsin and trypsin are proteins that digest proteins.

Correct AnswerverifiedShow Answer

Pancreatic amylase serves its function when it is located in the

Correct AnswerverifiedShow Answer

Which statement accurately describes the effects of substrate and enzyme concentrations on reaction rate

Correct AnswerverifiedShow Answer

When oxygen is low,pyruvate is converted to lactate,while

Correct AnswerverifiedShow Answer

Which one of the following choices includes three descriptions that are consistent with each other (that is,that describe the same type of chemical reaction)

Correct AnswerverifiedShow Answer

Decarboxylation occurs during the intermediate stage of aerobic cellular respiration.

Correct AnswerverifiedShow Answer

In a redox reaction,when one reactant is oxidized,the other

Correct AnswerverifiedShow Answer

The form of kinetic energy that refers to the movement of electromagnetic waves is _________ energy.

Correct AnswerverifiedShow Answer

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At temperatures above 40^$\circ$C (104^$\circ$CF) in the human body,

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