A cell consists of a number of organelles that perform various functions. Which cell organelle controls the movement of particles in and out of the cell?

Options

A. Cell membrane
B. Mitochondria
C. Lysosomes
D. Cytoplasm

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which cell organelle controls the movement of particles in and out of the cell. This indicates that we need to identify an organelle responsible for regulating what enters and exits the cell.

2. **Identifying the Options**: The options provided are:
- A) Cell Membrane
- B) Mitochondria
- C) Lysosomes
- D) Cytoplasm

3. **Analyzing Each Option**:
- **Option A: Cell Membrane**: The cell membrane is known to be selectively permeable, meaning it controls the entry and exit of substances. It allows certain molecules to pass while blocking others. This makes it the correct answer.
- **Option B: Mitochondria**: Mitochondria are responsible for energy production through cellular respiration, not for controlling movement of particles in and out of the cell. Thus, this option is incorrect.
- **Option C: Lysosomes**: Lysosomes are often referred to as the "suicidal bags" of the cell because they contain enzymes that break down waste materials and cellular debris. They do not control the movement of particles in and out of the cell, making this option incorrect as well.
- **Option D: Cytoplasm**: The cytoplasm is the jelly-like substance within the cell that holds organelles in place and is involved in cell expansion. It does not control the movement of particles, so this option is also incorrect.

4. **Conclusion**: After analyzing all the options, the cell organelle that controls the movement of particles in and out of the cell is the **Cell Membrane**.

**Final Answer**: The cell organelle that controls the movement of particles in and out of the cell is the **Cell Membrane**.

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