The cell wall is not involved in _____
a) absorption
b) secretion
c) osmoregulation
d) translocation

Options

A. absorption
B. secretion
C. osmoregulation
D. translocation

Answer

To solve the question regarding the functions that the cell wall is not involved in, we can analyze each option step by step:

1. **Understanding the Cell Wall**: The cell wall is a rigid outer layer that surrounds the cell membrane in plant cells, fungi, and some bacteria. Its primary functions include providing structural support, protection, and shape to the cell.

2. **Analyzing Each Option**:
- **a) Absorption**: The cell wall does play a role in absorption as it allows certain substances to pass through and be absorbed by the cell.
- **b) Secretion**: The cell wall is involved in secretion, as it can help in releasing substances from the cell.
- **c) Osmoregulation**: The cell wall contributes to osmoregulation by maintaining the cell's shape and regulating the internal environment, including concentration and pH levels.
- **d) Translocation**: Translocation refers to the movement of substances within the plant, particularly the transport of nutrients and water. This process primarily occurs through specialized structures like vascular tissues (xylem and phloem) and not through the cell wall.

3. **Conclusion**: Based on the analysis, the cell wall is not involved in translocation. Therefore, the correct answer is **d) translocation**.

---