IP₃ is released into the cytoplasm when PIP2 is hydrolyzed. IP₃ A) opens Ca²⁺ channels. B) closes Ca²⁺ channels. C) stimulates G protein activation of phospholipase C. D) activates cyclic AMP. E) produces calcium-binding protein S4.

Question

Quizplus · Accepted Answer

IP₃ (Inositol trisphosphate) functions as a second messenger that opens calcium channels in the endoplasmic reticulum, leading to an increase in cytoplasmic Ca²⁺ levels.

IP3 Is Released into the Cytoplasm When PIP2 Is Hydrolyzed

IP₃ Is Released into the Cytoplasm When PIP2 Is Hydrolyzed