Which of the following cell organelles is present in the highest number in secretory cells ?

Options

A. Mitochondria
B. Lysosomes
C. Endoplasmic reticulum
D. Golgi complex

Answer

To determine which cell organelle is present in the highest number in secretory cells, we can analyze the functions and roles of the given organelles: mitochondria, lysosomes, endoplasmic reticulum, and Golgi complex.

### Step-by-Step Solution:

1. **Understanding Secretory Cells**:
- Secretory cells are specialized cells that produce and secrete substances such as hormones, enzymes, and other important molecules.

2. **Role of Golgi Complex**:
- The Golgi complex is crucial for processing and packaging proteins and lipids that are synthesized in the cell. It modifies these substances and prepares them for secretion.

3. **Presence of Golgi Complex in Secretory Cells**:
- In secretory cells, the Golgi complex is particularly abundant because it is responsible for the final modifications and packaging of secretory products.
- In plant cells, the Golgi apparatus is made up of structures called dictyosomes, which are involved in producing materials for secretion.

4. **Comparison with Other Organelles**:
- **Mitochondria**: While they are essential for energy production, they are not specifically involved in secretion.
- **Lysosomes**: These organelles are involved in digestion and waste removal, not in the secretion process.
- **Endoplasmic Reticulum (ER)**: The ER is involved in the synthesis of proteins and lipids but does not package them for secretion. It works in conjunction with the Golgi complex.

5. **Conclusion**:
- Given the role of the Golgi complex in processing and packaging secretory products, it is the organelle present in the highest number in secretory cells.

### Final Answer:
The cell organelle present in the highest number in secretory cells is the **Golgi complex**.