Subject SAT (College Board) Biology: Questions 204 - 208 of 805

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Question number: 204

» Organization and Regulation

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MCQ▾

Question

Moss peat is used in a packing material for transporting plants and flowers to distant places as

Choices

Choice (4) Response

a.

It is easily available as cheap

b.

It reduces transpiration

c.

It is hygroscopic

d.

It serve as a disinfectant

Question number: 205

» Organism and Population

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MCQ▾

Question

Some enzymes covalently bind a non-protein organic molecule to the active site. The organic molecule concerned is required if the enzyme is to catalyze a reaction on a substrate. What is the term used for such a molecule?

Choices

Choice (4) Response

a.

Prosthetic group

b.

Modulator

c.

Coenzyme

d.

Cofactor

Question number: 206

» Organism and Population

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Question

What is common between earthworm and cockroach?

Choices

Choice (4) Response

a.

Malpighian tubules

b.

Solid ventral nerve cord

c.

Nephridia

d.

Cuticle

Question number: 207

» Atoms and Compounds

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Question

In which of the following type of paper, chromatography does the mobile phase move horizontally over a circular sheet of paper?

Choices

Choice (4) Response

a.

Ascending paper chromatography

b.

Ascending – descending chromatography

c.

Descending paper chromatography

d.

Radial paper chromatography

Question number: 208

» Organism and Population

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MCQ▾

Question

Correct characteristics of class reptilia are

Choices

Choice (4) Response

a.

Body covered with moist skin devoid of scales, ear is represented by tympanus, alimentary canal, urinary bladder and reproductive tracts open into a common cloaca.

b.

Fresh water animals with bony endoskeleton, air bladder to regulate buoyancy

c.

Body covered with dry and cornified skin, epidermal scales, no external ears

d.

Marine animals with cartilaginous endoskeleton, body with placoid scales

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