The synthesis of liqids and proteins is associated with
(a) Endoplasmic reticulum
(b) Mitochondria
(c) Chloroplast
(d) Lysosmes

Options

A. Endoplasmic reticulum
B. Mitochondria
C. Chloroplast
D. Lysosmes.

Answer

To solve the question regarding which organelle is associated with the synthesis of lipids and proteins, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which organelle is responsible for the synthesis of both lipids and proteins.

2. **Identify the Organelles**: The options provided are:
- (a) Endoplasmic reticulum
- (b) Mitochondria
- (c) Chloroplast
- (d) Lysosomes

3. **Analyze Each Option**:
- **Endoplasmic Reticulum (ER)**: The ER is divided into two types:
- **Rough Endoplasmic Reticulum (RER)**: This type is studded with ribosomes, which are the sites for protein synthesis.
- **Smooth Endoplasmic Reticulum (SER)**: This type is involved in the synthesis and modification of lipids.
- Therefore, the ER is responsible for the synthesis of both lipids and proteins.

- **Mitochondria**: These organelles are primarily involved in ATP production through cellular respiration, not in the synthesis of lipids or proteins.

- **Chloroplasts**: These are involved in photosynthesis and do not synthesize lipids or proteins.

- **Lysosomes**: These contain hydrolytic enzymes for digestion and are not involved in the synthesis of lipids or proteins.

4. **Conclusion**: Based on the analysis, the only organelle that is associated with the synthesis of both lipids and proteins is the **Endoplasmic Reticulum**.

5. **Final Answer**: The correct option is **(a) Endoplasmic reticulum**.