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Which cells divide during nodule formati...

Which cells divide during nodule formation?

A

Cortex

B

Pericycle

C

Endodermis

D

Both (1) and (2)

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Nodule Formation**: Nodule formation occurs in leguminous plants when symbiotic nitrogen-fixing bacteria, such as Rhizobium, establish a relationship with the plant roots. 2. **Identifying the Cells Involved**: The primary cells involved in nodule formation are the cortical cells of the root. These cells are located in the cortex region of the root. 3. **Role of Plant Hormones**: During this process, the cortical cells secrete plant hormones, specifically auxins and cytokinins. These hormones are crucial as they promote cell division. 4. **Additional Cell Types**: In addition to cortical cells, the pericycle cells (which are located just inside the endodermis) also undergo division during nodule formation. 5. **Conclusion**: Therefore, the cells that divide during nodule formation are primarily the cortical cells and the pericycle cells. The endodermis does not participate in this division process. 6. **Final Answer**: The correct answer to the question is that both the cortex and pericycle cells divide during nodule formation. ---
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