Question 1

A DNA sequence AACGGTGCACCACGG encodes a portion of a protein of sequence

Accepted Answer

A)   ile-gly-ala-pro-arg.
B)   leu-pro-arg-gly-ala.
C)   ala-gly-arg-pro-leu.
D)   arg-pro-ala-gly-ile.E) A) and D)
F) None of the above

Question 2

The genetic code is

Accepted Answer

A)   the correspondence between a sequence of three DNA nucleotides and a specific amino acid.
B)   the correspondence between a DNA nucleotide and an RNA nucleotide.
C)   the correspondence between a gene and a genome.
D)   the correspondence between a specific amino acid and a specific gene.E) None of the above
F) A) and B)

Question 3

"Anabolic metabolism" refers to

Accepted Answer

A)   biochemical reactions that synthesize compounds.
B)   all processes required to maintain life.
C)   biochemical reactions that break down compounds.
D)   biochemical reactions that release energy from nutrients.E) A) and B)
F) A) and C)

Question 4

The DNA damage response replaces mismatched nucleotides.

Accepted Answer

A) True 
 B)False

Question 5

Three types of genetic changes are

Accepted Answer

A)   replication, transcription, and translation.
B)   A to C, G to C, and U to A.
C)   mutations, SNPs, and changes in copy number.
D)   adenine, guanine, and cytosine.E) None of the above
F) C) and D)

Question 6

In the citric acid cycle,

Accepted Answer

A)   carbon dioxide is released.
B)   oxygen atoms are released.
C)   4 ATP molecules are formed.
D)   hydrocholoric acid is released.E) B) and C)
F) A) and D) A

Question 7

If you eat too many carbohydrates, they can be stored as fat.

Accepted Answer

A) True 
 B)False  True

Question 8

Codons are three contiguous mRNA bases.

Accepted Answer

A) True 
 B)False

Question 9

A cofactor is ______ and examples are _____.

Accepted Answer

A)   an inorganic molecule that all enzymes require; cholesterol and calcium
B)   an inorganic molecule that some enzymes require; vitamin B12 and B6
C)   a necessary part of some enzymes; copper, iron, and zinc
D)   a molecule that destabilizes substrates; carbonic acidE) C) and D)
F) A) and C)

Question 10

The genome sequences of different individuals are

Accepted Answer

A)   always identical.
B)   always different.
C)   about 90% alike.
D)   about 99.9% alike.E) All of the above
F) None of the above

Question 11

DNA and RNA differ in strandedness, type of sugar, and types of nitrogenous bases.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following substances increases in abundance during cellular respiration?

Accepted Answer

A)   Oxygen
B)   Glucose
C)   ATP
D)   GlycogenE) None of the above
F) B) and C)

Question 13

A single nucleotide polymorphism is a very rare genetic variant that affects health.

Accepted Answer

A) True 
 B)False

Question 14

The name of an enzyme ends in

Accepted Answer

A)   -ese.
B)   -ose.
C)   -gen.
D)   -ase.E) B) and C)
F) A) and C)

Question 15

Which of the following is not true regarding RNA?

Accepted Answer

A)   It is transcribed in the nucleus and enters the cytoplasm.
B)   It includes ribose, a 5-carbon sugar.
C)   It is double-stranded.
D)   It has cytosine as one of its four nitrogenous bases.E) C) and D)
F) A) and B)

Question 16

The enzyme catalase acts on the substrate

Accepted Answer

A)   oxygen.
B)   hydrogen.
C)   hydrogen peroxide.
D)   peroxidase.E) All of the above
F) A) and B)

Question 17

An ATP molecule consists of an adenine, a ribose, and three phosphates.

Accepted Answer

A) True 
 B)False

Question 18

A DNA sequence of CGCTTACGATTG would be transcribed into an RNA sequence of GCGAAUGCUAAC.

Accepted Answer

A) True 
 B)False

Question 19

Which of the nitrogenous bases is part of DNA but not RNA?

Accepted Answer

A)   Uracil
B)   Thymine
C)   Guanine
D)   CytosineE) A) and B)
F) B) and D)

Question 20

The aerobic reactions of cellular respiration occur in the mitochondria.

Accepted Answer

A) True 
 B)False  True

Exam 4: Cellular Metabolism

A DNA sequence AACGGTGCACCACGG encodes a portion of a protein of sequence

Correct AnswerverifiedShow Answer

The genetic code is

Correct AnswerverifiedShow Answer

"Anabolic metabolism" refers to

Correct AnswerverifiedShow Answer

The DNA damage response replaces mismatched nucleotides.

Correct AnswerverifiedShow Answer

Three types of genetic changes are

Correct AnswerverifiedShow Answer

In the citric acid cycle,

Correct AnswerverifiedA

If you eat too many carbohydrates, they can be stored as fat.

Correct AnswerverifiedTrue

Codons are three contiguous mRNA bases.

Correct AnswerverifiedShow Answer

A cofactor is ______ and examples are _____.

Correct AnswerverifiedShow Answer

The genome sequences of different individuals are

Correct AnswerverifiedShow Answer

DNA and RNA differ in strandedness, type of sugar, and types of nitrogenous bases.

Correct AnswerverifiedShow Answer

Which of the following substances increases in abundance during cellular respiration?

Correct AnswerverifiedShow Answer

A single nucleotide polymorphism is a very rare genetic variant that affects health.

Correct AnswerverifiedShow Answer

The name of an enzyme ends in

Correct AnswerverifiedShow Answer

Which of the following is not true regarding RNA?

Correct AnswerverifiedShow Answer

The enzyme catalase acts on the substrate

Correct AnswerverifiedShow Answer

An ATP molecule consists of an adenine, a ribose, and three phosphates.

Correct AnswerverifiedShow Answer

A DNA sequence of CGCTTACGATTG would be transcribed into an RNA sequence of GCGAAUGCUAAC.

Correct AnswerverifiedShow Answer

Which of the nitrogenous bases is part of DNA but not RNA?

Correct AnswerverifiedShow Answer

The aerobic reactions of cellular respiration occur in the mitochondria.

Correct AnswerverifiedTrue

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A

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True

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A cofactor is __ and examples are _.

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True