Which hormone is derived from pigments in plants?

Options

A. ABA
B. GA
C. `C_(2)H_(4)`
D. CK

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks which hormone is derived from pigments in plants.

2. **Understand Plant Hormones**: There are several plant hormones, including abscisic acid (ABA), gibberellic acid, ethylene, and cytokinins. Each has different functions and origins.

3. **Focus on Abscisic Acid (ABA)**: Abscisic acid is a plant hormone known for its role in regulating plant growth and development, particularly in response to stress and during senescence (aging).

4. **Link ABA to Plant Pigments**: The video transcript mentions that abscisic acid is derived from the xanthophyll pigment, which is a yellow pigment found in plants.

5. **Eliminate Other Options**:
- Gibberellic acid is derived from fungi, not plant pigments.
- Ethylene (C2H4) is a gaseous hormone that promotes fruit ripening and is not derived from pigments.
- Cytokinins are involved in cell division and are not derived from pigments either.

6. **Conclusion**: Based on the information provided, abscisic acid is the hormone derived from pigments in plants, specifically from the xanthophyll pigment.

**Final Answer**: Abscisic acid (ABA) is the hormone derived from pigments in plants.

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