The role of G-proteins in cellular signaling is to
Question and options
The role of G-proteins in cellular signaling is to
- Transmit signals directly through the cell membrane
- Activate receptor tyrosine kinases
- Facilitate the binding of ligands to receptors
- Mediate intracellular responses to extracellular signals
Answer and explanation
Correct answer: D - Mediate intracellular responses to extracellular signals
G-proteins couple activated GPCRs to effectors (adenylyl cyclase, phospholipase C), generating second messengers. They mediate intracellular responses to extracellular signals.
Practice for these exams
-
CUSAT CAT M.Sc. Forensic Science
-
Bihar Judicial Services
Subject revision
-
Uttarakhand Judicial Services
Subject revision