Procambium forms

Options

A. Vascular cambium
B. Cork cambium
C. Primary vascular bundle
D. Both (1) and (3)

Answer

**Step-by-Step Solution:**

1. **Understanding Procambium**: Procambium is a type of meristematic tissue in plants. Meristematic tissues are responsible for the growth of plants and are capable of continuous cell division.

2. **Function of Procambium**: The primary function of procambium is to give rise to the primary vascular tissues of the plant. This includes the formation of xylem and phloem, which are essential for the transport of water, nutrients, and food throughout the plant.

3. **Differentiation of Procambium**: As the plant grows, procambium differentiates into vascular tissues. Specifically, it develops into xylem, phloem, and vascular cambium.

4. **Vascular Cambium**: Vascular cambium is a type of lateral meristem that contributes to the secondary growth of plants, allowing them to increase in thickness. It is formed from procambium and plays a crucial role in the formation of secondary xylem and phloem.

5. **Conclusion**: Based on the information provided, procambium primarily forms vascular cambium and contributes to the formation of primary vascular bundles (xylem and phloem). Therefore, the correct answer to the question "Procambium forms" is option D: both vascular cambium and primary vascular bundles.

**Final Answer**: Procambium forms both vascular cambium and primary vascular bundles (option D).

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