Which of the following statements is correct about the working of steroid hormone?

Options

A. They enter into target cells and binds with the specific receptors and activates specific genes to from a protein .
B. They bind to cell membrane receptors.
C. They catalyze the formation of cAMP
D. None of the above

Answer

To determine the correct statement about the working of steroid hormones, let's analyze the options provided step by step.

### Step 1: Understanding Steroid Hormones
Steroid hormones are lipid-soluble molecules derived from cholesterol. They can easily pass through the cell membrane due to their hydrophobic nature.

**Hint:** Remember that steroid hormones can cross cell membranes because they are lipophilic.

### Step 2: Mechanism of Action
Once inside the target cell, steroid hormones bind to specific intracellular receptors. This hormone-receptor complex then translocates to the nucleus, where it binds to specific DNA sequences and activates or represses the transcription of certain genes.

**Hint:** Focus on the fact that steroid hormones work by directly influencing gene expression.

### Step 3: Evaluating the Statements
1. **They enter into target cell and bind with the specific receptors and activate specific gene to form a protein.**
- This statement is correct. Steroid hormones do enter the cell and bind to intracellular receptors, leading to gene activation.

2. **They bind to cell membrane receptors.**
- This statement is incorrect. Steroid hormones do not bind to cell membrane receptors; that is characteristic of protein hormones.

3. **They catalyze the formation of CAMP.**
- This statement is also incorrect. CAMP (cyclic adenosine monophosphate) is a secondary messenger typically associated with protein hormones, not steroid hormones.

4. **None of the above.**
- This statement is incorrect since the first statement is true.

### Conclusion
The correct statement about the working of steroid hormones is: **They enter into target cell and bind with the specific receptors and activate specific gene to form a protein.**

**Final Answer:** The correct option is the first statement.