IP₃ in signaling mechanisms A) Is released form phosphatidylinositol bisphosphate in the plasma membrane B) Is synthesized from inositol bisphosphate in the cytosol C) Bind s to IP₃ receptors on the ER, causing an Increase in cytosolic [Ca²⁺ ] D) Is the main signaling chemical in Gs m echanisms E) Both A and C are correct

Question

Quizplus · Accepted Answer

IP₃ is a placeholder for a signaling molecule, likely meant to represent IP3 (Inositol trisphosphate). IP3 is indeed released from phosphatidylinositol bisphosphate (PIP2) in the plasma membrane (A) and binds to IP3 receptors on the ER, causing an increase in cytosolic calcium levels (C).

IP3 in Signaling Mechanisms

IP₃ in Signaling Mechanisms