Question

(T or F) Once activated, a GPCR molecule can activate multiple molecules of G protein to amplify the incoming signal?

Answer 1

GPCRs can activate multiple molecules of G protein to amplify the incoming signal, leading to a robust cellular response.

Step-by-step explanation:

True

G-protein-coupled receptors (GPCRs) can activate multiple molecules of G protein to amplify the incoming signal. Once a GPCR is activated by binding to a ligand, it undergoes a conformational change that triggers the activation of the associated G protein. The activated G protein then interacts with other proteins, such as enzymes or ion channels, to further propagate the signal. This amplification of the signal allows for a more robust cellular response.