ATI RN
Questions on Cells Tissues and Organs Questions
Question 1 of 5
Which type of intracellular signaling involves direct physical contact between cells?
Correct Answer: A
Rationale: Contact-dependent signaling requires direct cell-to-cell contact for signal transmission.
Question 2 of 5
What is the primary function of gap junctions in cell communication?
Correct Answer: B
Rationale: Gap junctions allow direct electrical and chemical communication between cells.
Question 3 of 5
The exchange of genetic material between non-sister chromatids occurs during which process?
Correct Answer: C
Rationale: Crossing over exchanges genetic material during meiosis.
Question 4 of 5
Which phase of the cell cycle is characterized by the cell preparing for division, duplicating its organelles, and checking for DNA errors?
Correct Answer: C
Rationale: The G2 phase prepares the cell for division.
Question 5 of 5
What is the primary function of the centrosome in cell division?
Correct Answer: B
Rationale: The centrosome organizes microtubules for spindle formation.