The cell with in cell, organelle is

Options

A. RER
B. mitochondria
C. both (1) & (2)
D. bacteria

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about a specific type of organelle that can be described as a "cell within a cell." This implies that the organelle has characteristics similar to a cell, such as having its own DNA and the ability to replicate.

2. **Identifying Candidates**: The options provided are RER (Rough Endoplasmic Reticulum), mitochondria, both one and two, and bacteria. We need to analyze which of these options fits the description of a "cell within a cell."

3. **Analyzing Mitochondria**: Mitochondria are known as the powerhouse of the cell. They are unique organelles found in eukaryotic cells. Mitochondria have a double membrane structure, contain their own DNA, and have ribosomes that are similar to those found in prokaryotic cells. This allows them to synthesize some of their own proteins.

4. **Analyzing Chloroplasts**: Although not mentioned in the options, chloroplasts share similar characteristics with mitochondria. They also have a double membrane, contain their own DNA, and are involved in photosynthesis.

5. **Conclusion**: Given the characteristics of mitochondria and the context of the question, the correct answer is that the organelle described as a "cell within a cell" is the mitochondria.

6. **Final Answer**: The cell with a "cell within a cell" organelle is **Mitochondria**.

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