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Part of the plant body where Abscisic ...

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

A

Leaves

B

Flower

C

Roots

D

Seeds

Text Solution

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The correct Answer is:
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**
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