Question

Which one of the following is not a second messenger in hormone action?

• A. cGMP
• B. Sodium
• C. Calcium
• D. cAMP

Answer 1

The correct option is B

Sodium

The correct option is B.

The explanation for the correct option :

Sodium does not serve as the secondary messenger for any hormone.

The explanation for the incorrect option :

Option A :

1. cGMP is the secondary messenger for group II B hormones..

Option C :

1. Group II C hormones use calcium as a secondary messenger.

Option D :

1. Group II A uses cAMP as a secondary messenger.

Final Answer : Sodium is not related to secondary messenger.