Where is exarch condition present?

Options

A. Stem
B. Root
C. Leaf
D. Both 1 and 2

Answer

**Step-by-Step Solution:**

1. **Understand the Terms:**
- The terms "exarch" and "endarch" refer to the arrangement of xylem in plants.
- In exarch condition, the protoxylem (the first xylem to develop) is located towards the outside, while the metaxylem (the later-developed xylem) is located towards the center.

2. **Identify the Locations of Xylem:**
- In stems, the arrangement is typically endarch, meaning the protoxylem is located in the center (pith) and the metaxylem is towards the periphery.
- In roots, the arrangement is exarch, where the protoxylem is located towards the periphery and the metaxylem is in the center.

3. **Determine Where Exarch Condition is Present:**
- Since the question asks specifically about the exarch condition, we focus on the roots.
- The exarch condition is not found in leaves or stems, but specifically in roots.

4. **Conclude the Answer:**
- Therefore, the exarch condition is present in the roots of flowering plants.

**Final Answer:**
The exarch condition is present in the roots.

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