What is the role of second messenger in hormone action ?

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Second Messengers**: Second messengers are intracellular signaling molecules that relay signals received at cell surface receptors to target molecules inside the cell. They are also referred to as intracellular hormonal mediators.

2. **Function in Hormone Action**: The primary role of second messengers is to deliver information from hormones that bind to receptors on the cell membrane into the interior of the target cell. This process is crucial for the transmission of hormonal signals.

3. **Activation of Cellular Enzymes**: Once the second messenger is activated, it initiates a cascade of biochemical reactions that activate specific cellular enzymes. This cascade effect amplifies the signal and ensures a robust response from the cell.

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