Question 1

Where does the binding of an anticodon to a codon occur?

Accepted Answer

A)   Within a ribosome
B)   In the cytosol
C)   In the nucleus
D)   In a mitochondrionE) B) and C)
F) All of the above

Question 2

How are enzymes able to catalyze chemical reactions so that they proceed fast enough to sustain life?

Accepted Answer

A)   By transporting the product(s)  of the reaction out of the cell
B)   By decreasing the activation energy of the reaction
C)   By creating more efficient metabolic pathways
D)   By providing energy in the form of ATP
E)   By removing cofactors and coenzymes that slow reactionsF) B) and D)
G) B) and E)

Question 3

A segment of a DNA strand has the base sequence T, C, G, A, T, C. What is the base sequence of the complementary strand?

Accepted Answer

A)      T, C, G, A, T, C	
B)      A, G, C, T, A, G
C)      U, C, G, A, U, C
D)      A, G, C, U, A, G
E)      C, T, A, G, C, TF) A) and B)
G) B) and E)

Question 4

In the gut, the digestion of a meal to release nutrient molecules is an example of __________.

Accepted Answer

A)   catabolism
B)   anabolismC) A) and B)
D) undefined

Question 5

Cellular respiration occurs in three distinct series of reactions. What is the correct order of these reactions?

Accepted Answer

A)   Electron transport chain; glycolysis; citric acid cycle
B)   Glycolysis; electron transport chain; citric acid cycle
C)   Citric acid cycle; glycolysis; electron transport chain
D)   Glycolysis; citric acid cycle; electron transport chain
E)   Electron transport chain; citric acid cycle; glycolysisF) A) and B)
G) C) and E)

Question 6

Identify the complementary base pairs in DNA.

Accepted Answer

A)   A - G and C - T
B)   A - G and C - U
C)   A - A, G - G, C - C, and T - T
D)   A - T and G - CE) A) and D)
F) B) and C)

Question 7

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which results in the production of water?

Accepted Answer

A)   Aerobic phase
B)   Anaerobic phaseC) A) and B)
D) undefined

Question 8

The term __________ includes all of the chemical reactions that occur in the body.

Accepted Answer

The answer of The term __________ includes all of the...

Question 9

What is an example of dehydration synthesis?

Accepted Answer

A)   Converting a protein into amino acids
B)   Converting monosaccharides into glycogen
C)   Converting water molecules into hydrogen and hydroxyl ions
D)   Converting a triglyceride into cholesterolE) A) and C)
F) A) and B)

Question 10

For each molecule of glucose that is completely oxidized, how many ATP molecules are produced?

Accepted Answer

A)   2
B)   4
C)   25
D)   32
E)   48F) D) and E)
G) A) and E)

Question 11

The part of an enzyme called the __________ combines with a specific part of the substrate.

Accepted Answer

A)   polar site
B)   active site
C)   terminal site
D)   nucleus
E)   cofactorF) B) and E)
G) None of the above

Question 12

What is the term for the complete set of genetic instructions for an individual?

Accepted Answer

A)   Gene
B)   Nucleus
C)   DNA
D)   Genome
E)   Messenger RNAF) A) and B)
G) A) and C)

Question 13

During protein synthesis, what determines the amino acid order in the newly produced polypeptide chain?

Accepted Answer

A)   Ribosomal RNA
B)   Transfer RNA
C)   Messenger RNAD) None of the above
E) All of the above

Question 14

A chemical reaction in which bonds are broken is associated with __________.

Accepted Answer

A)   the consumption of energy
B)   the release of energyC) A) and B)
D) undefined

Question 15

A genome is a section of DNA in which the nitrogenous base sequence encodes a specific sequence of amino acids.

Accepted Answer

A) True 
 B)False

Question 16

How is water involved in the process of hydrolysis?

Accepted Answer

A)   A water molecule is released.
B)   A water molecule is consumed.C) A) and B)
D) undefined

Question 17

An enzyme exposed to certain chemicals, heat, extremes of pH, electricity, or radiation can become __________, potentially inactivating it.

Accepted Answer

A)   unnatural
B)   genetically modified
C)   denatured
D)   mutated
E)   catabolizedF) A) and D)
G) B) and C)

Question 18

What is the fate of a glucose molecule during the anaerobic phase of cellular respiration?

Accepted Answer

A)   Glucose is broken down to yield two molecules of pyruvic acid.
B)   Glucose combines with another glucose molecule to yield one molecule of pyruvic acid.
C)   Glucose combines with oxygen to form a molecule of pyruvic acid.
D)   Glucose is broken down to yield one molecule of pyruvic acid and one molecule of lactic acid.
E)   Glucose remains unchanged.F) A) and B)
G) C) and D)

Question 19

What is the function of enzymes?

Accepted Answer

A)   To increase activation energy
B)   To slow metabolic reactions
C)   To function as catalysts
D)   To act as reactants in chemical reactions
E)   To convey the genetic code for a cellF) A) and B)
G) C) and D)

Question 20

Each enzyme acts only on specific chemicals. What are these chemicals called?

Accepted Answer

A)   Genes
B)   Catalysts
C)   Activators
D)   Cofactors
E)   SubstratesF) C) and E)
G) C) and D)

Exam 4: Cellular Metabolism

How is water involved in the process of hydrolysis?

Correct AnswerverifiedShow Answer

What is an example of dehydration synthesis?

Correct AnswerverifiedShow Answer

During protein synthesis, what determines the amino acid order in the newly produced polypeptide chain?

Correct AnswerverifiedShow Answer

Each enzyme acts only on specific chemicals. What are these chemicals called?

Correct AnswerverifiedShow Answer

Cellular respiration occurs in three distinct series of reactions. What is the correct order of these reactions?

Correct AnswerverifiedShow Answer

Where does the binding of an anticodon to a codon occur?

Correct AnswerverifiedShow Answer

How are enzymes able to catalyze chemical reactions so that they proceed fast enough to sustain life?

Correct AnswerverifiedShow Answer

The term __________ includes all of the chemical reactions that occur in the body.

Correct AnswerverifiedShow Answer

What is the term for the complete set of genetic instructions for an individual?

Correct AnswerverifiedShow Answer

A genome is a section of DNA in which the nitrogenous base sequence encodes a specific sequence of amino acids.

Correct AnswerverifiedShow Answer

A chemical reaction in which bonds are broken is associated with __________.

Correct AnswerverifiedShow Answer

The part of an enzyme called the __________ combines with a specific part of the substrate.

Correct AnswerverifiedShow Answer

In the gut, the digestion of a meal to release nutrient molecules is an example of __________.

Correct AnswerverifiedShow Answer

Identify the complementary base pairs in DNA.

Correct AnswerverifiedShow Answer

What is the function of enzymes?

Correct AnswerverifiedShow Answer

What is the fate of a glucose molecule during the anaerobic phase of cellular respiration?

Correct AnswerverifiedShow Answer

Compare the anaerobic phase of cellular respiration to the aerobic phase. Which results in the production of water?

Correct AnswerverifiedShow Answer

For each molecule of glucose that is completely oxidized, how many ATP molecules are produced?

Correct AnswerverifiedShow Answer

An enzyme exposed to certain chemicals, heat, extremes of pH, electricity, or radiation can become __________, potentially inactivating it.

Correct AnswerverifiedShow Answer

A segment of a DNA strand has the base sequence T, C, G, A, T, C. What is the base sequence of the complementary strand?

Correct AnswerverifiedShow Answer

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