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If the growing plant is decapitated, the...

If the growing plant is decapitated, then

A

axillary buds are inactivated

B

axillary buds are activated

C

leaves become yellow and have a

D

growth stops

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "If the growing plant is decapitated, then," we need to understand the role of the shoot apex and auxins in plant growth. ### Step-by-Step Solution: 1. **Understanding Decapitation**: - Decapitation refers to the removal of the shoot apex of a growing plant. The shoot apex is the tip of the plant where growth occurs. 2. **Role of Auxins**: - Auxins are plant hormones produced in the shoot apex that promote growth. They are responsible for the phenomenon known as apical dominance, where the main shoot grows more vigorously than the lateral (axillary) buds. 3. **Effect of Removing the Shoot Apex**: - When the shoot apex is removed, the concentration of auxins in the plant decreases. This reduction in auxin levels leads to a loss of apical dominance. 4. **Activation of Axillary Buds**: - With the removal of the shoot apex and the decrease in auxin, the axillary buds (which are located in the leaf axils) are no longer inhibited. As a result, these buds become activated and start to grow. 5. **Conclusion**: - Therefore, the correct answer to the question is that the axillary buds are activated. ### Final Answer: **b. Axillary buds are activated.**
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