AP (Advanced Placement) Biology: Questions 81 - 85 of 868

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Question number: 81

» Enyzmes and Metabolism

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MCQ▾

Question

Name of the enzyme which helps in conversion of pyruvate into acetyl-CoA is called:

Choices

Choice (5)Response

a.

Pyruvate dehydrogenase

b.

Gyrase

c.

Helicase

d.

Pyruvate hydrogenase

e.

All of the above

Question number: 82

» DNA and Protein Synthesis

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MCQ▾

Question

Same amino acid is coded by multiple codons due to:

Choices

Choice (5)Response

a.

Redundant

b.

Mutation

c.

Degeneracy

d.

Transcription

e.

Both a. and c. are correct

Question number: 83

» DNA and Protein Synthesis

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MCQ▾

Question

Which of the following is the proper representation for the process known as biology’s central dogma?

Choices

Choice (5)Response

a.

RNA ← DNA → proteins

b.

Genotype changes produce phenotype changes

c.

Survival of the fittest results in the founding of new species

d.

Replication → transcription → translation

e.

RNA → DNA → RNA → proteins

Question number: 84

» Enyzmes and Metabolism

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MCQ▾

Question

In homeostasis, the steady-state battle against entropy so vital to life is possible because

Choices

Choice (5)Response

a.

All cellular reactions are exergonic

b.

All cells are autotrophic

c.

All cellular reactions are anabolic

d.

Cells cannot convert energy from one form to another

e.

Cells continually take up energy from the environment

Question number: 85

» DNA and Protein Synthesis

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MCQ▾

Question

In the central dogma of molecular biology, protein synthesis can be summarized as follow as:

Choices

Choice (5)Response

a.

DNA ◊ RNA ◊ Transcription ◊ Translation

b.

DNA ◊ Translation ◊ RNA ◊ Transcription

c.

DNA ◊ Transcription ◊ RNA ◊ Translation

d.

DNA ◊ RNA ◊ Translation ◊ Transcription

e.

All of the above

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