Xylem translocates

Options

A. Water mineral salts and some organic nitrogen only
B. Water mineral salts some organic nitrogen and hormones
C. Water only
D. Water and mineral salts only

Answer

**Step-by-Step Solution:**

1. **Understanding Xylem Function**: Xylem is a type of vascular tissue in plants responsible for the transport of water and dissolved minerals from the roots to the rest of the plant. It also plays a role in transporting certain organic substances.

2. **Identifying the Components Translocated by Xylem**: The primary substances translocated by xylem include:
- Water
- Mineral salts
- Some organic nitrogen compounds
- Hormones

3. **Evaluating the Options**:
- **Option 1**: Water, Mineral, Salt and some Organic Nitrogen only.
- This option is incorrect because it does not include hormones.
- **Option 2**: Water, Mineral, Soil, Some Organic Nitrogen and Hormones.
- This option is partially correct but includes "Soil," which is not translocated by xylem. However, it does mention hormones, which is important.
- **Option 3**: Water only.
- This option is incorrect as it does not include minerals, organic nitrogen, or hormones.
- **Option 4**: Water and mineral salts only.
- This option is also incorrect as it excludes organic nitrogen and hormones.

4. **Conclusion**: The most accurate option that reflects the substances translocated by xylem is **Option 2**, despite the inclusion of "Soil," which is misleading.

**Final Answer**: Xylem translocates water, mineral salts, some organic nitrogen, and hormones.

---