Ground tissue system is made up of

Options

A. Parenchyma only
B. Collenchyma only
C. Sclerenchyma only
D. All types of simple tissues

Answer

**Step-by-Step Solution:**

1. **Understanding Ground Tissue System**: The ground tissue system is one of the three main tissue systems in plants, alongside the dermal and vascular tissue systems. It primarily functions in storage, support, and photosynthesis.

2. **Origin of Ground Tissue**: The ground tissue system arises from the ground meristem, which is a type of meristematic tissue responsible for the formation of ground tissues.

3. **Components of Ground Tissue**: The ground tissue system is made up of three types of simple tissues:
- **Parenchyma**: These are living cells that are typically soft and succulent. They are involved in storage, photosynthesis, and tissue repair.
- **Collenchyma**: These cells provide support, especially in young stems and leaves. They are characterized by their thickened cell walls and are also living cells.
- **Sclerenchyma**: This tissue provides structural support and is made up of dead cells at maturity. Sclerenchyma can be further classified into fibers and sclereids.

4. **Conclusion**: Therefore, the ground tissue system is composed of all three types of simple tissues: parenchyma, collenchyma, and sclerenchyma.

**Final Answer**: The ground tissue system is made up of parenchyma, collenchyma, and sclerenchyma.

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