Question

Calmodulin binds to _______ and becomes activated.

1) Na⁺
2) G protein
3) Ca₂⁺
4) protein kinase C
5) adenylyl cyclase

Answer 1

Calmodulin binds to Ca²⁺ and becomes activated. Ca²⁺ is an important second messenger that plays a crucial role in many cellular processes.

Step-by-step explanation:

Calmodulin binds to Ca²⁺ and becomes activated. Ca²⁺ is an important second messenger that plays a crucial role in many cellular processes. When calmodulin binds to Ca²⁺, it undergoes a conformational change that allows it to interact with and activate various target proteins, including protein kinases and adenylyl cyclase.