In plant cell, the vacuole

Options

A. Contains air and lacks membrane
B. Contains water and excretory substances but lacks membrane
C. Contains storage protein and lipids and is membrane bound
D. Is membrane bound, contains water and excretory substance

Answer

**Step-by-step Solution:**

1. **Understanding Vacuoles in Plant Cells**:
- Vacuoles are large, membrane-bound structures found in plant cells. They play a crucial role in maintaining the cell's structure and function.

2. **Size and Structure**:
- In plant cells, vacuoles are typically larger than those found in animal cells. They are surrounded by a membrane known as the tonoplast.

3. **Function of Vacuoles**:
- The primary function of vacuoles in plant cells includes storing water, which is essential for maintaining turgor pressure. This pressure helps keep the plant upright and provides structural support.

4. **Storage of Substances**:
- Vacuoles also store various substances, including waste materials and excretory products, which are byproducts of cellular metabolism.

5. **Conclusion**:
- Based on the functions and characteristics of vacuoles in plant cells, the correct answer to the question is that vacuoles are membrane-bound structures that contain water and excretory substances.

**Final Answer**: Vacuoles in plant cells are membrane-bound structures that contain water and excretory substances.

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