The cell organelle that is in close proximity to the cis face of Golgi bodies is

Options

A. lysosomes.
B. mitochondria.
C. peroxisomes
D. endoplasmic reticulum

Answer

To solve the question, "The cell organelle that is in close proximity to the cis face of Golgi bodies is," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Golgi Apparatus**: The Golgi apparatus has two distinct faces: the cis face and the trans face. The cis face is the receiving side, while the trans face is the shipping side.

2. **Identify the Organelles**: The options given are:
- Lysosome
- Mitochondria
- Peroxisome
- Endoplasmic Reticulum (ER)

3. **Analyze the Relationship between Golgi Apparatus and Other Organelles**:
- The Golgi apparatus is closely associated with the endoplasmic reticulum (ER). The cis face of the Golgi apparatus is where it receives transport vesicles containing proteins and lipids from the rough endoplasmic reticulum (RER).
- The rough ER is involved in the synthesis of proteins, which are then packaged into vesicles and sent to the Golgi apparatus.

4. **Evaluate Each Option**:
- **Lysosome**: These are involved in digestion and waste removal but are not directly connected to the cis face of the Golgi.
- **Mitochondria**: These are the powerhouses of the cell, responsible for energy production, but they do not have a direct relationship with the Golgi apparatus.
- **Peroxisome**: These organelles are involved in lipid metabolism and detoxification but are not in close proximity to the Golgi apparatus.
- **Endoplasmic Reticulum**: The rough ER is directly involved in the formation of proteins that are sent to the Golgi apparatus, making it the correct answer.

5. **Conclusion**: Based on the analysis, the cell organelle that is in close proximity to the cis face of the Golgi bodies is the **Endoplasmic Reticulum**.

### Final Answer:
The correct answer is **Endoplasmic Reticulum**.