Cell eating is also known as

ATI RN

ATI RN Test Bank

A. phagocytosis B. exocytosis C. pinocytosis D. cell pumping

Correct Answer: A

Rationale: Phagocytosis is the process of engulfing large particles, often called 'cell eating.'

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.

An atom of carbon has 6 protons, 6 neutrons and 6 electrons. What is the mass number of this isotope of carbon?

A. 6 B. 9 C. 12 D. 18

Correct Answer: C

Rationale: Mass number = protons + neutrons = 6 + 6 = 12 (carbon-12 isotope).

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.

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