Ageing of leaves and shoots is called

Options

A. Chlorosis
B. Wilting
C. Senescence
D. Necrosis.

Answer

To answer the question "Aging of leaves and shoots is called," follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**: Familiarize yourself with the options provided:
- **Chlorosis**: A condition where leaves produce insufficient chlorophyll, leading to yellowing.
- **Wilting**: A state where the plant loses rigidity due to lack of water.
- **Necrosis**: The premature death of plant cells or tissues.
- **Senescence**: The process of aging in plants, particularly in leaves and shoots.

2. **Analyze Each Option**:
- **Chlorosis** does not relate to aging but rather to a deficiency in chlorophyll.
- **Wilting** is associated with water loss and does not specifically refer to aging.
- **Necrosis** involves cell death but is not synonymous with the aging process.
- **Senescence** specifically refers to the aging process of leaves and shoots.

3. **Identify the Correct Answer**: Based on the definitions and analyses, the term that best describes the aging of leaves and shoots is **senescence**.

4. **Conclusion**: Therefore, the correct answer to the question is **senescence**.