Research on aging suggests that as cells age,their rate of cell division decreases until they ultimately no longer divide.Which of the following would provide evidence that the decreased rate of cell division is related to cell signaling?

Question

Quizplus · Accepted Answer

Decreased affinity of growth factor receptors for their respective ligands suggests that the signaling pathway responsible for regulating cell division is not functioning properly, leading to the decreased rate of cell division observed in aging cells. Decreased ATP production or decreased hormone production may be related to aging, but they do not directly indicate a link to cell signaling. Decreased numbers of cytoplasmic ribosomes may suggest a decrease in protein synthesis, but again, this does not directly indicate a link to cell signaling.

Research on Aging Suggests That as Cells Age,their Rate of Cell