Hormones can be classified based on their chemical nature as

Options

A. biogenic amines only
B. proteins, steroids and biogenic amines
C. proteins only
D. steroids only

Explanation

### Step-by-Step Solution:

1. **Understanding Hormones**: Hormones are non-nutrient chemicals produced in trace amounts by endocrine glands. They act as intercellular messengers, facilitating communication between different parts of the body.

2. **Classification Based on Chemical Nature**: Hormones can be classified into different categories based on their chemical structure. The main classifications include:
- **Peptide, Polypeptide, or Protein Hormones**: These are made up of amino acids and include hormones such as insulin and glucagon (produced by the pancreas), as well as various pituitary and hypothalamic hormones.
- **Steroidal Hormones**: These hormones are derived from cholesterol and include sex hormones like testosterone (an androgen) and estrogen, as well as cortisol from the adrenal cortex.
- **Iodothyronines**: This category includes thyroid hormones, with thyroxine being a key example.
- **Amino Acid Derivatives**: These hormones are derived from single amino acids, such as epinephrine (adrenaline), which is secreted by the adrenal medulla.

3. **Identifying the Correct Classification**: Based on the classifications mentioned, hormones can be categorized as:
- Proteins (peptide and polypeptide hormones)
- Steroids (steroidal hormones)
- Biogenic amines (amino acid derivatives)

4. **Conclusion**: Therefore, the correct classification of hormones based on their chemical nature includes proteins, steroids, and biogenic amines.

### Final Answer:
Hormones can be classified based on their chemical nature as proteins, steroids, and biogenic amines.

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