Membrane most abundant in a cell is

Options

A. Nuclear membrane
B. Golgi membrane
C. Plasma membrane
D. E.R. membrane

Answer

**Step-by-Step Solution:**

1. **Understanding the Question:**
The question asks which membrane is the most abundant in a cell. To answer this, we need to analyze the different types of membranes present in a cell.

2. **Analyzing the Options:**
- **Nuclear Membrane:** This membrane surrounds the nucleus and serves as a protective layer. However, it is not the most abundant membrane in the cell.
- **Golgi Membrane:** This membrane surrounds the Golgi apparatus, which is involved in modifying, sorting, and packaging proteins. While important, it is not the most abundant.
- **Plasma Membrane:** This membrane encloses the entire cell and separates the interior of the cell from the external environment. It is significant but still not the most abundant.
- **Endoplasmic Reticulum (ER) Membrane:** The ER is a network of membranes that plays a crucial role in the synthesis of proteins and lipids. The membrane of the ER constitutes about 30-60% of the total cell membrane.

3. **Identifying the Most Abundant Membrane:**
After analyzing all the options, the endoplasmic reticulum membrane stands out as it makes up a large portion of the total membrane in the cell, accounting for 30-60%.

4. **Conclusion:**
Therefore, the most abundant membrane in a cell is the **endoplasmic reticulum membrane**.

**Final Answer:**
The membrane most abundant in a cell is the **endoplasmic reticulum (ER) membrane**.

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