The cambial ring is generally (Option 1) More active on the inner side than on the outer (Option 2 ) More active on the outer side than the inner (Option 3 ) Equally active towards both sides (Option 4 ) Equally inactive towards both sides

Options

A. a) More active on the inner side than on the outer
B. b) More active on the outer side than the inner
C. c) Equally active towards both sides
D. d) Equally inactive towards both sides

Answer

**Step-by-Step Solution:**

1. **Understanding the Cambial Ring**: The cambial ring is a layer of meristematic tissue found in plants that is responsible for secondary growth. It consists of two types of cambium: intrafascicular cambium and interfascicular cambium.

2. **Identifying the Types of Cambium**:
- **Intrafascicular Cambium**: This cambium is located between the primary xylem and primary phloem.
- **Interfascicular Cambium**: This cambium is formed from the medullary rays and connects the vascular bundles.

3. **Function of the Cambial Ring**: The cambial ring produces new cells on both the inner and outer sides. The inner side produces secondary xylem (wood), while the outer side produces secondary phloem (bark).

4. **Activity Level of the Cambial Ring**:
- The cells produced on the inner side (towards the pith) are more active and contribute more significantly to the growth of secondary xylem.
- The cells produced on the outer side (towards the periphery) are less active and primarily contribute to the formation of secondary phloem.

5. **Conclusion**: Based on the activity levels of the cambial ring, it is clear that the cambial ring is generally more active on the inner side than on the outer side. Therefore, the correct answer is **Option 1: More active on the inner side than on the outer**.

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