Main function of golgi-complex is :-

Options

A. Fermentation
B. Phosphorylation
C. Respiration
D. Packaging of materials for secretion

Answer

### Step-by-Step Solution:

1. **Understanding the Golgi Complex**: The Golgi complex, also known as the Golgi apparatus, is an essential organelle in eukaryotic cells. It consists of a series of flattened membrane-bound sacs known as cisternae.

2. **Identifying the Faces of the Golgi Complex**: The Golgi apparatus has two distinct faces:
- **Cis Face**: This side is oriented towards the endoplasmic reticulum (ER) and is responsible for receiving proteins and lipids that have been synthesized in the ER.
- **Trans Face**: This side is oriented away from the ER and is involved in the packaging and distribution of these materials.

3. **Main Functions of the Golgi Complex**:
- **Modification of Proteins**: The Golgi complex modifies proteins received from the ER, which may include glycosylation (adding sugar molecules) and other modifications.
- **Sorting and Packaging**: After modification, the Golgi apparatus sorts and packages these proteins into vesicles for transport to their final destinations, which may include secretion outside the cell or delivery to lysosomes.
- **Lipid Transport**: The Golgi also plays a role in the transport of lipids within the cell.

4. **Analyzing the Options**: The question provides four options:
- A) Fermentation
- B) Phosphorylation
- C) Respiration
- D) Packaging of material for secretion

Among these options, the most accurate description of the main function of the Golgi complex is **D) Packaging of material for secretion**.

5. **Conclusion**: Therefore, the main function of the Golgi complex is to package materials (primarily proteins and lipids) for secretion and transport to various parts of the cell.

### Final Answer:
The main function of the Golgi complex is **packaging of material for secretion** (Option D).

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