ATI RN
Cell and Tissue Test Bank Questions Questions
Question 1 of 5
Which molecule serves as a common second messenger in many intracellular signaling pathways?
Correct Answer: C
Rationale: cAMP acts as a second messenger, amplifying signals in many pathways.
Question 2 of 5
In intracellular signaling, what is the role of second messengers?
Correct Answer: C
Rationale: Second messengers amplify and relay signals inside the cell.
Question 3 of 5
The phase of the cell cycle during which the cell is actively dividing is called:
Correct Answer: D
Rationale: The M phase includes mitosis and cytokinesis, the active division phase.
Question 4 of 5
During which phase of meiosis do sister chromatids separate and move toward opposite poles of the cell?
Correct Answer: C
Rationale: Sister chromatids separate during Anaphase II, but this question aligns with document error; corrected context suggests Anaphase I for homologous chromosomes. Assuming error, correct phase is Anaphase II (not listed), but per document, it's C.
Question 5 of 5
During which phase of meiosis do homologous chromosomes align along the equatorial plane of the cell?
Correct Answer: B
Rationale: Homologous chromosomes align during Metaphase I.