Part of the plant body where Abscisic acid is not synthesized but Cytokinin are synthesized is

Options

A. Leaves
B. Flower
C. Roots
D. Seeds

Answer

To solve the question regarding the part of the plant body where Abscisic acid (ABA) is not synthesized but Cytokinins are synthesized, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Abscisic Acid (ABA)**:
- Abscisic acid is a plant hormone that primarily inhibits growth and promotes seed dormancy. It plays a crucial role in stress responses, such as closing stomata to prevent water loss.

2. **Understanding Cytokinins**:
- Cytokinins are plant hormones that promote cell division and growth. They are involved in various processes, including root and shoot development, and they also promote chloroplast development in leaves.

3. **Analyzing the Options**:
- We have four options to consider: A) Leaves, B) Flower, C) Roots, D) Seeds.

4. **Evaluating Each Option**:
- **A) Leaves**: Both ABA and Cytokinins affect leaves. ABA is involved in stomatal closure, while Cytokinins promote growth and chloroplast development. Thus, this option is incorrect.
- **B) Flower**: Similar to leaves, both ABA and Cytokinins influence flowers. Therefore, this option is also incorrect.
- **C) Roots**: Cytokinins are synthesized in roots, promoting root growth and development. However, ABA does not play a significant role in root synthesis. This indicates that this option could be correct.
- **D) Seeds**: ABA is synthesized in seeds and plays a role in seed dormancy and germination. Therefore, this option is incorrect.

5. **Conclusion**:
- The only part of the plant body where Abscisic acid is not synthesized but Cytokinins are synthesized is the **Roots (Option C)**.

### Final Answer:
**C) Roots**