The face of the Golgi apparatus receives the materials packaged in the form of vesicles from the ER is

Options

A. cis face.
B. trans face.
C. both (A) and (B)
D. none of these

Answer

To solve the question regarding which phase of the Golgi apparatus receives materials packaged in vesicles from the endoplasmic reticulum (ER), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Golgi Apparatus**:
The Golgi apparatus consists of flattened membranous sacs known as cisternae. It has distinct faces: the cis face, the trans face, and the medial region.

**Hint**: Remember the basic structure of the Golgi apparatus and its distinct faces.

2. **Identify the Function of the Endoplasmic Reticulum (ER)**:
The ER is involved in the synthesis of proteins (rough ER) and lipids (smooth ER). Once proteins are synthesized in the rough ER, they are packaged into vesicles for transport.

**Hint**: Recall the role of the rough ER in protein synthesis and vesicle formation.

3. **Determine the Pathway of Vesicle Transport**:
The vesicles containing the synthesized proteins bud off from the rough ER and are transported to the Golgi apparatus.

**Hint**: Think about how vesicles move from one organelle to another in the cell.

4. **Identify the Receiving Face of the Golgi Apparatus**:
The cis face of the Golgi apparatus is the side that faces the endoplasmic reticulum. It is here that the vesicles from the ER fuse with the Golgi apparatus and release their contents for further processing.

**Hint**: Remember that the cis face is the entry point for materials coming from the ER.

5. **Conclusion**:
Based on the understanding of the Golgi apparatus and its interaction with the ER, the correct answer to the question is that the cis face of the Golgi apparatus receives the materials packaged in vesicles from the endoplasmic reticulum.

**Final Answer**: The correct option is **Cis face** (Option 1).