By loss of ribosomes RER converts in :–

Options

A. SER
B. Golgibody
C. Lysosome
D. Microtubules

Answer

To solve the question "By loss of ribosomes RER converts in:", let's break it down step by step.

### Step-by-Step Solution:

1. **Understanding Rough Endoplasmic Reticulum (RER)**:
- The Rough Endoplasmic Reticulum (RER) is characterized by the presence of ribosomes on its surface, which gives it a "rough" appearance. These ribosomes are essential for protein synthesis.

**Hint**: Remember that ribosomes are the sites of protein synthesis and are attached to the RER.

2. **Loss of Ribosomes**:
- When ribosomes detach from the RER, it loses its rough appearance. This change indicates a transition in its function and structure.

**Hint**: Think about what happens to the structure when ribosomes are no longer present.

3. **Conversion to Smooth Endoplasmic Reticulum (SER)**:
- Without ribosomes, the RER transforms into the Smooth Endoplasmic Reticulum (SER). The SER is involved in lipid synthesis and does not have ribosomes on its surface.

**Hint**: Consider the functions of the SER and how they differ from those of the RER.

4. **Evaluating the Options**:
- The question likely provides multiple-choice answers. The correct answer would be the Smooth Endoplasmic Reticulum (SER), as it is the direct result of the loss of ribosomes from the RER.
- Other options like Golgi body, lysosome, and microtubules do not relate to the transformation of RER.

**Hint**: Cross-reference the functions of each option with what you know about RER and SER.

5. **Conclusion**:
- Therefore, the answer to the question is that by the loss of ribosomes, the Rough Endoplasmic Reticulum converts into the Smooth Endoplasmic Reticulum.

### Final Answer:
**Smooth Endoplasmic Reticulum (SER)**