If a cell has 46 chromosomes before mitosis, the t

ATI RN

ATI RN Test Bank

If a cell has 46 chromosomes before mitosis, the two new cells will have chromosomes.

A. 23 B. 92 C. 46 D. 69

Correct Answer: C

Rationale: Mitosis maintains chromosome number; each daughter cell gets 46.

What type of bond is formed when two atoms share electrons unequally?

A. Hydrogen bond B. Ionic bond C. Non-polar covalent bond D. Polar covalent bond

Correct Answer: D

Rationale: Polar covalent bonds (e.g., H2O) have unequal electron sharing due to electronegativity differences.

A chemical substance that helps keep the pH from drastically changing is a(an)

A. acid B. base C. buffer D. isotope

Correct Answer: C

Rationale: Buffers resist pH changes by neutralizing added acids or bases.

What polysaccharide is the storage form of glucose in animals?

A. cellulose B. starch C. sucrose D. glycogen

Correct Answer: D

Rationale: Glycogen is stored in animal liver and muscles as a glucose reserve.

Which of the following is NOT a function of proteins?

A. forming hormones B. forming monosaccharides C. forming transport molecules D. forming hair and nails

Correct Answer: B

Rationale: Proteins don't form monosaccharides (carbohydrates); they serve structural and functional roles.

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