An interconnecting membranous network of the cell composed of vesicles, flattened sacs and tubules is
" " Or
Nuclear membrane is formed around the groups of daughter chromosomes during the telophase by

Options

A. Endoplasmic reticulum
B. Lysosomes
C. Golgi apparatus
D. Microbodies

Answer

### Step-by-Step Solution:

1. **Identify the Description**: The question asks for a cell structure that is described as an interconnecting membranous network composed of vesicles, flattened sacs, and tubules.

2. **Recall Cell Organelles**: Consider the various cell organelles that fit this description. The options provided are endoplasmic reticulum, lysosomes, Golgi apparatus, and microbodies.

3. **Analyze Each Option**:
- **Lysosomes**: These are primarily vesicle-like structures involved in digestion and waste removal, but they do not form an interconnected network of flattened sacs and tubules.
- **Golgi Apparatus**: While it consists of flattened sacs (cisternae), it does not form a continuous network with tubules and vesicles like the endoplasmic reticulum.
- **Microbodies**: These are small organelles that do not fit the description of a membranous network.
- **Endoplasmic Reticulum (ER)**: This organelle is known for its extensive network of membranes that includes both flattened sacs (cisternae) and tubules, making it the best fit for the description.

4. **Conclusion for the First Question**: The correct answer for the first part of the question is **Endoplasmic Reticulum**.

5. **Address the Second Question**: The second part of the question asks about the formation of the nuclear membrane around daughter chromosomes during telophase.

6. **Recall the Role of Endoplasmic Reticulum in Telophase**: During telophase, the nuclear membrane reforms around the separated daughter chromosomes. This process is facilitated by the endoplasmic reticulum, which provides the necessary membranes.

7. **Final Conclusion**: The answer to the second part of the question is also **Endoplasmic Reticulum**.

### Final Answers:
- The interconnecting membranous network is **Endoplasmic Reticulum**.
- The nuclear membrane is formed around the daughter chromosomes during telophase by **Endoplasmic Reticulum**.

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