AP (Advanced Placement) Biology: Questions 88 - 92 of 327

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Question number: 88

» Enyzmes and Metabolism

MCQ▾

Question

Which of the following would NOT be used as a final electron acceptor in anaerobic respiration?

Choices

Choice (5) Response

a.

Iron

b.

Nitrogen

c.

Sulfur

d.

Oxygen

e.

Protons

Question number: 89

» DNA and Protein Synthesis

MCQ▾

Question

Sticky ends are formed by:

Choices

Choice (5) Response

a.

Cutting DNA so that there are short, single strands at each end

b.

DNA breaking down in the presence of reverses transcriptase

c.

Adding polymerase to the end of the DNA fragment

d.

All of the above

e.

Question does not provide sufficient data or is vague

Question number: 90

» DNA and Protein Synthesis

MCQ▾

Question

Which of the following is component of sigma factor?

Choices

Choice (5) Response

a.

RNA polymerase

b.

DNA ligase

c.

DNA polymerase

d.

Endonuclease

e.

Question does not provide sufficient data or is vague

Question number: 91

» DNA and Protein Synthesis

MCQ▾

Question

The term 60S should immediately bring to mind the

Choices

Choice (5) Response

a.

Structure of the spliceosomes within the eukaryotic nucleus

b.

Intact eukaryotic ribosome

c.

Entire structure responsible for cellular translation

d.

Large ribosomal subunit of prokaryotes

e.

Large ribosomal subunit of eukaryotes

Question number: 92

» Enyzmes and Metabolism

MCQ▾

Question

The activity (maximum) of any enzyme from a halophilic bacterium is found at

Choices

Choice (5) Response

a.

A pH nearer 7.4 than 4.2

b.

A pH nearer 4.2 than 7.4

c.

A salt concentration closer to 5 percent than 0.85 percent

d.

A temperature closer to 25° Celsius than 35° Celsius

e.

Any temperature exceeding 45° Celsius

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