Which of the following statements about hormones is / are correct
I. Hormones are non-nutrient chemicals
II. Hormones act as intercellular messengers
III. Hormones are produced in trace amount .
IV. Hormones may be proteins, steroids, glycoproteins and bigenic amines

Options

A. All
B. I, II, III
C. IV
D. I,III

Answer

To determine which statements about hormones are correct, let's analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement I: Hormones are non-nutrient chemicals.**
- Hormones are indeed classified as non-nutrient chemicals. They are not consumed for energy or as building blocks for cellular structures, but rather function as signaling molecules in the body.
- **Conclusion:** This statement is correct.

2. **Statement II: Hormones act as intercellular messengers.**
- Hormones are known to act as intercellular messengers, meaning they facilitate communication between cells. They are secreted into the bloodstream and travel to target cells to elicit specific responses.
- **Conclusion:** This statement is correct.

3. **Statement III: Hormones are produced in trace amounts.**
- Hormones are typically produced in very small quantities, often referred to as trace amounts. Despite their low concentration, they can have significant effects on physiological processes.
- **Conclusion:** This statement is correct.

4. **Statement IV: Hormones may be proteins, steroids, glycoproteins, and biogenic amines.**
- Hormones can indeed be classified into various categories, including proteins (like insulin), steroids (like cortisol), glycoproteins (like follicle-stimulating hormone), and biogenic amines (like epinephrine).
- **Conclusion:** This statement is correct.

### Final Conclusion:
All four statements about hormones are correct.