ATI RN
Cells and Tissue Multiple Choice Questions Questions
Question 1 of 5
Mitosis functions in:
Correct Answer: A
Rationale: Mitosis is for growth and repair; spermatogenesis and oogenesis involve meiosis.
Question 2 of 5
An atom of carbon has 6 protons, 6 neutrons and 6 electrons. What is the mass number of this isotope of carbon?
Correct Answer: C
Rationale: Mass number = protons + neutrons = 6 + 6 = 12 (carbon-12 isotope).
Question 3 of 5
What type of bond is formed when two atoms share electrons unequally?
Correct Answer: D
Rationale: Polar covalent bonds (e.g., H2O) have unequal electron sharing due to electronegativity differences.
Question 4 of 5
A chemical substance that helps keep the pH from drastically changing is a(an)
Correct Answer: C
Rationale: Buffers resist pH changes by neutralizing added acids or bases.
Question 5 of 5
What polysaccharide is the storage form of glucose in animals?
Correct Answer: D
Rationale: Glycogen is stored in animal liver and muscles as a glucose reserve.