Electron microscopy has revealed that the Golgi complex is involved in the

Options

A. formation of primary lysosomes
B. development of ribosomes
C. accumulation of lipoproteins
D. accumulation of proteins

Answer

**Step-by-Step Solution:**

1. **Understanding the Golgi Complex**: The Golgi complex, also known as the Golgi body, is an organelle in cells that plays a crucial role in processing and packaging proteins.

2. **Function of the Golgi Complex**: The primary function of the Golgi complex is to receive proteins from the rough endoplasmic reticulum (RER) and modify, package, and distribute them to their destinations within or outside the cell.

3. **Structure of the Golgi Complex**: The Golgi complex consists of a series of flattened, membrane-bound sacs called cisternae. It has two sides: the cis side (receiving side) and the trans side (shipping side).

4. **Formation of Primary Lysosomes**: During the processing of proteins, the Golgi complex is involved in the formation of primary lysosomes. These are vesicles that bud off from the Golgi and contain enzymes that are not yet active.

5. **Eliminating Other Options**:
- **Development of Ribosomes**: This occurs in the nucleolus, not the Golgi complex.
- **Accumulation of Lipoproteins**: This is a function of the smooth endoplasmic reticulum.
- **Accumulation of Proteins**: This is primarily the role of the rough endoplasmic reticulum.

6. **Conclusion**: Based on the functions and roles of the Golgi complex, the correct answer to the question is that the Golgi complex is involved in the **formation of primary lysosomes**.