AP (Advanced Placement) Biology: Questions 15 - 21 of 327

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Question number: 15

» DNA and Protein Synthesis

MCQ▾

Question

Ribosomes are located on:

Choices

Choice (5) Response

a.

Nucleus

b.

Rough endoplasmic reticulum

c.

Smooth endoplasmic reticulum

d.

Cytoplasm

e.

All of the above

Question number: 16

» DNA and Protein Synthesis

MCQ▾

Question

Which of the following elements is NOT required for a cell to synthesize DNA?

Choices

Choice (5) Response

a.

Carbon

b.

Nitrogen

c.

Iron

d.

Phosphorus

e.

Hydrogen

Question number: 17

» Enyzmes and Metabolism

MCQ▾

Question

5-carbon molecule involved in the TCA cycle is:

Choices

Choice (5) Response

a.

Acetyl CoA

b.

Oxaloacetate

c.

Pyruvate

d.

α-ketoglutarate

e.

Succinyl CoA

Question number: 18

» Enyzmes and Metabolism

MCQ▾

Question

If 12.5 g of fats were fully oxidized, what would be the net energy released for used by a body?

Choices

Choice (5) Response

a.

125 kilocalories

b.

100 kilocalories

c.

50 kilocalories

d.

12.5 kilocalories

e.

112.5 kilocalories

Question number: 19

» Enyzmes and Metabolism

MCQ▾

Question

Energy is important to all forms of life because

Choices

Choice (5) Response

a.

It is required to make specific alterations in the cell

b.

All forms of life require a continuous supply of it

c.

It is required to do work

d.

All a. , b. and c. are correct

e.

None of the above

Question number: 20

» DNA and Protein Synthesis

MCQ▾

Question

The clustering or stringing of ribosomes are called:

Choices

Choice (5) Response

a.

Cycloheximide

b.

Polyribosomes

c.

Ergosomes

d.

Both b. and c. are correct

e.

Question does not provide sufficient data or is vague

Question number: 21

» Enyzmes and Metabolism

MCQ▾

Question

A competitive inhibitor

Choices

Choice (5) Response

a.

Does not inhibit enzyme activity but lowers substrate concentration

b.

Binds to and inactivates the substrate

c.

Cannot be processed by the enzyme

d.

Irreversibly binds and inactivates the enzyme

e.

Binds at a site other than the active site

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