AP (Advanced Placement) Biology: Questions 39 - 44 of 327

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Question number: 39

» Enyzmes and Metabolism

MCQ▾

Question

Process in which substance gains electrons is called as:

Choices

Choice (5) Response

a.

Reduction

b.

Dehydration

c.

Oxidation

d.

Catalysis

e.

None of the above

Question number: 40

» Enyzmes and Metabolism

MCQ▾

Question

In Krebs cycle, succinyl CoA is converted into:

Choices

Choice (5) Response

a.

Succinate

b.

Fumarate

c.

Malate

d.

Alpha- ketoglutarate

e.

All of the above

Question number: 41

» Enyzmes and Metabolism

MCQ▾

Question

What types of viruses contain the enzyme lysozyme to aid in their infection?

Choices

Choice (5) Response

a.

Bacteriophages

b.

Plant viruses

c.

Human viruses

d.

Animal viruses

e.

Fungal viruses

Question number: 42

» DNA and Protein Synthesis

MCQ▾

Question

DNA ligase is used to

Choices

Choice (5) Response

a.

Initiate DNA synthesis in prokaryotes

b.

Join together Okazaki fragments during lagging-strand DNA synthesis

c.

Identify the site on an operon where RNA polymerase binds to the DNA helix

d.

Initiate DNA synthesis in eukaryotes

e.

Stabilize the DNA helix to prevent supercoiling during DNA replication

Question number: 43

» DNA and Protein Synthesis

MCQ▾

Question

Ribosomes are located on ________I________ and made up of ________II________.

Choices

Choice (5) Response

a.

I – Rough endoplasmic reticulum, II – rRNA and proteins

b.

I – Rough endoplasmic reticulum, II – RNA and proteins

c.

I – Smooth endoplasmic reticulum, II – rRNA and proteins

d.

I – Smooth endoplasmic reticulum, II – RNA and proteins

e.

All of the above

Question number: 44

» Enyzmes and Metabolism

MCQ▾

Question

Bacteria are produced 38 molecules of adenosine triphosphate (ATP) from each glucose molecule metabolized by oxidative phosphorylation. Which of the following is NOT true about this statement?

Choices

Choice (5) Response

a.

This yield includes ATP expenses required to drive glycolysis forward.

b.

The majority of the ATP molecules are produced within the mitochondria.

c.

This yield is greater than that produced from a molecule of glucose within a human cell.

d.

This total yield of ATP includes molecules produced by substrate-level phosphorylation.

e.

The presence of oxygen is required to produce this total yield of ATP.

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