AP (Advanced Placement) Biology: Questions 819 - 823 of 868

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Question number: 819

» Eukaryotic Cell

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MCQ▾

Question

Against a concentration gradient, glucose can cross membrane by

Choices

Choice (5)Response

a.

Osmosis

b.

Carrier-mediated passive transport

c.

Diffusion

d.

Carrier-mediated active transport

e.

Channel-mediated passive transport

Question number: 820

» Eukaryotic Cell

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MCQ▾

Question

Classes of lipids in an animal cell membrane include which of the following?

Choices

Choice (5)Response

a.

Phospholipids, cholesterol, and glycolipids

b.

Phospholipids, cholesterol, and amylopectin

c.

Glycolipids, cholesterol and peptones

d.

Peptidoglycans, cholesterol, and glycolipids

e.

Cholesterol, phospholipids and polysaccharide

Question number: 821

» DNA and Protein Synthesis

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MCQ▾

Question

How is sigma factor used in transcription?

Choices

Choice (5)Response

a.

Elongation

b.

Binds with operator

c.

Initiation

d.

Termination

e.

Binds with promotor

Question number: 822

» Microbiology

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MCQ▾

Question

The staining technique used in a microbiology lab to differentiate the two major types of bacterial cell walls is the

Choices

Choice (5)Response

a.

Gram stain

b.

Basic stain

c.

Safranin stain

d.

Acid-fast stain

e.

Blue stain

Question number: 823

» Microbiology

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MCQ▾

Question

An infectious agent having a complex protein structure, incorporated with base plates or tail fibers, best describes

Choices

Choice (5)Response

a.

A virusoids

b.

A pathogenic bacterium

c.

A viroid

d.

A T-even bacteriophage

e.

A prion

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