Atoms and Compounds [Subject SAT (College Board) Biology]: Questions 47 - 49 of 96

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Question number: 47

Atoms and Compounds
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Question

MCQ▾

Peptide bond is

Choices

Choice (5)Response

a.

Planar, covalent

b.

Covalent

c.

Rigid with partial double bond character

d.

All a. , b. and c. are correct

e.

None of the above

Question number: 48

Atoms and Compounds
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Question

MCQ▾

Choose the correct statement about fatty acid among the following

Choices

Choice (5)Response

a.

The membrane lipids contain most of the unsaturated fatty acids

b.

The melting point of fatty acid increases with the increasing degree of unsaturation

c.

Naturally occurring unsaturated long chain fatty acids are nearly all the Trans- configuration.

d.

All of the above

e.

Question does not provide sufficient data or is vague

Question number: 49

Atoms and Compounds
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Question

MCQ▾

Which one of the following statements best describes the enthalpy change of a reaction?

Choices

Choice (5)Response

a.

The energy consumed when chemical bonds are broken during a chemical reaction

b.

The energy released when chemical bonds are formed during a chemical reaction

c.

The increase in disorder of the system as a reaction proceeds

d.

The difference between the energy released by bond formation and the energy consumed by bond cleavage during a chemical reaction

e.

None of the above