QUESTION A The dry weight of a cell is mostly composed of: A) Nucleic acids B) I

Question

QUESTION A

The dry weight of a cell is mostly composed of:

A) Nucleic acids

B) Inorganic ions and metabolic intermediates

C) Polysaccharides

D) Protein

QUESTION B

Why are macromolecules constantly being synthesized in a cell?

A) Macromolecules typically have a half-life on the order of days.

B) If the energy produced by the cell through aerobic respiration is not used, components of the cell will become oxidized.

C) Growth of the cell requires the synthesis of new components.

D) A and C

E) B and C

Explanation / Answer

QUESTION A:

The Proteins are mostly composed of dry weight of a cell. Thus, the correct option is (D).

QUESTION B:

Macromolecules have to be constantly being synthesized in a cell, because they typically have a half-life on the order of days and the Growth of the cell requires the synthesis of new components.

Thus, the correct option is (E) B and C.

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