Subject SAT (College Board) Biology: Questions 708 - 712 of 805

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Question number: 708

» Cell

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MCQ▾

Question

In the photosynthesis the light in-dependent reaction occurs in

Choices

Choice (4) Response

a.

Thylakoid lumen

b.

PS-II

c.

Stromal matrix

d.

PS-I

Question number: 709

» Atoms and Compounds

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MCQ▾

Question

The diagram below represents reactions taking place in a bacterium in which amino acids are produced from other amino acids by the action of specific enzymes.

The numbers 1 - 3 refer to different amino acids and the letters V and X refer to different enzymes.

When an excess of amino acid 3 is added into the bacterium the rate of the reactions is reduced. What is the cause of this?

V and X refer to different enzymes

V and X Refer to Different Enzymes

V and X refer to different enzymes

Choices

Choice (4) Response

a.

Excess substrate inhibiting the enzyme

b.

Positive feedback

c.

End product inhibition

d.

Enzyme denaturation

Question number: 710

» Atoms and Compounds

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MCQ▾

Question

Out of 38 ATP molecules produced per molecule of glucose, 32 ATP molecules are formed from NADH/FADH2

Choices

Choice (4) Response

a.

Respiratory chain

b.

EMP

c.

Kreb’s cycle

d.

Oxidative phosphorylation

Question number: 711

» Mendel and Hereditary

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MCQ▾

Question

When two genetic loci produce identical phenotypes in cis and trans position, they are considered to be

Choices

Choice (4) Response

a.

multiple alleles

b.

different genes

c.

the parts of same gene

d.

pseudoalleles

Question number: 712

» Organization and Regulation

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MCQ▾

Question

Which one of the following conditions is least likely to denature an enzyme?

Choices

Choice (4) Response

a.

High temperature

b.

A low temperature

c.

Heavy metal ions

d.

Extreme pH

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