Export house/firm of cell is

Options

A. E.R.
B. Golgi body
C. Nucleus
D. Lysosome

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the "export house/firm of the cell," which refers to the cellular structure responsible for processing and transporting materials out of the cell.

2. **Identifying the Options**: The options provided are:
- A) Endoplasmic Reticulum (ER)
- B) Golgi Body
- C) Nucleus
- D) Lysosome

3. **Analyzing Each Option**:
- **Endoplasmic Reticulum (ER)**: The ER is involved in the synthesis of proteins and lipids but is primarily responsible for the transport of these materials within the cell, not exporting them outside.
- **Golgi Body**: The Golgi apparatus is known as the "export house" of the cell. It modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.
- **Nucleus**: The nucleus is the control center of the cell, housing genetic material, but it does not function in the export of materials.
- **Lysosome**: Lysosomes are involved in digestion and waste removal within the cell, not in the export of materials.

4. **Conclusion**: Based on the analysis, the Golgi Body is responsible for the secretion and intracellular transport of materials, making it the correct answer.

5. **Final Answer**: The export house/firm of the cell is the **Golgi Body** (Option B).

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