If an animal cell suddenly lost the ability to produce GTP, what might happen to its signaling system?

Question

Quizplus · Accepted Answer

GTP is used by G proteins to switch between their active and inactive forms during signal transduction. If the cell cannot produce GTP, the G proteins would not be able to activate and the signaling system would be impaired. The other options are incorrect because ATP cannot replace GTP in this signaling pathway, protein kinases are not a substitute for G proteins, and the cell would still be able to receive and transduce signals but not respond if it cannot produce GTP.

If an Animal Cell Suddenly Lost the Ability to Produce