The initial cambial arch in dicot root rises from cells just

Options

A. inner to xylem
B. outer to phloem
C. inner to phloem
D. close to cortex

Answer

To answer the question regarding the initial cambial arch in dicot roots, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Structure of Dicot Roots**:
- Dicot roots have a specific arrangement of vascular tissues, which includes xylem and phloem. The xylem is typically located towards the center, while the phloem is situated towards the outer side.

2. **Identifying the Cambium**:
- The cambium is a layer of meristematic tissue responsible for secondary growth. In dicot roots, the cambium forms a ring that contributes to the growth in thickness of the root.

3. **Locating the Initial Cambial Arch**:
- The question asks where the initial cambial arch arises. It is important to note that the cambium develops from specific cells located between the xylem and phloem.

4. **Analyzing the Options**:
- The options provided are:
a) Just inner to xylem
b) Outer to phloem
c) Inner to phloem
d) Close to cortex
- Based on the structure of dicot roots, the cambium arises from the cells that are just inner to the phloem.

5. **Conclusion**:
- Therefore, the correct answer is that the initial cambial arch in dicot roots arises from cells that are **inner to phloem**.

### Final Answer:
The initial cambial arch in dicot root rises from cells just **inner to phloem**.

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