In rooted plants, transport I xylem (of water and minerals) is essentially (A)____ from roots to the stems. Organic and mineral nutrients however under (B)____ transport.

Answer

To solve the question regarding the transport mechanisms in rooted plants, we need to understand the roles of xylem and phloem in plant physiology.

### Step-by-Step Solution:

1. **Identify the Function of Xylem:**
- Xylem is responsible for the transport of water and minerals from the roots to the rest of the plant, primarily the stems and leaves.
- This transport is crucial for maintaining plant hydration and nutrient supply.

2. **Determine the Direction of Xylem Transport:**
- The transport of water and minerals through xylem is **unidirectional**, meaning it only moves in one direction—from the roots upwards to the stems and leaves.

3. **Identify the Function of Phloem:**
- Phloem is responsible for the transport of organic nutrients (primarily sugars produced during photosynthesis) and some minerals throughout the plant.

4. **Determine the Direction of Phloem Transport:**
- The transport in phloem is **multidirectional**, meaning it can move nutrients in various directions: from leaves to roots, from roots to stems, and between different parts of the plant as needed.

5. **Fill in the Blanks:**
- For part (A), the answer is **unidirectional**.
- For part (B), the answer is **multidirectional**.

### Final Answers:
(A) unidirectional
(B) multidirectional

---