ATI RN
Cells and Tissues Multiple Choice Questions Questions
Question 1 of 5
The 'backbone' of DNA consists of repetitive sequences of phosphate and:
Correct Answer: B
Rationale: DNA's backbone is alternating phosphate and deoxyribose sugar units.
Question 2 of 5
Intercalated discs are found in:
Correct Answer: A
Rationale: Intercalated discs are unique to cardiac muscle, aiding synchronized contractions.
Question 3 of 5
What is the form of the genetic material in a non-dividing cell?
Correct Answer: C
Rationale: In a non-dividing cell, DNA is in a diffuse, thread-like form called chromatin.
Question 4 of 5
An example of a passive transport mechanism is:
Correct Answer: C
Rationale: Facilitated diffusion is passive, requiring no energy, unlike the active processes listed.
Question 5 of 5
The formation of a vesicle to bring material into a cell is called
Correct Answer: B
Rationale: Endocytosis forms vesicles to bring materials into the cell.