In Paramecium which process serves a func- tion similar to the circulation of blood in hu- mans?

Options

A. Movement of the cilia
B. Cyclosis
C. Intracellular synthesis
D. Hydrolysis

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which process in Paramecium functions similarly to blood circulation in humans. Blood circulation in humans distributes nutrients, oxygen, and metabolic wastes throughout the body.

2. **Identifying the Organism**: Paramecium is a unicellular organism, which means it does not have a circulatory system like multicellular organisms. Instead, it relies on internal processes to distribute materials within its cell.

3. **Understanding Blood Circulation in Humans**: In humans, blood circulates through blood vessels, delivering nutrients and oxygen to tissues and removing waste products. This process is essential for maintaining cellular functions.

4. **Identifying Processes in Paramecium**: The options given are:
- Movement of cilia
- Cyclosis
- Intracellular synthesis
- Hydrolysis

5. **Analyzing Each Option**:
- **Movement of Cilia**: This is primarily for locomotion and does not distribute nutrients or waste.
- **Cyclosis**: This is the streaming movement of cytoplasm within the cell, allowing for the distribution of food vacuoles and nutrients throughout the Paramecium.
- **Intracellular Synthesis**: This refers to the synthesis of substances within the cell, not the distribution of nutrients.
- **Hydrolysis**: This is a chemical process that breaks down compounds, not related to circulation.

6. **Conclusion**: The process that serves a function similar to blood circulation in Paramecium is **Cyclosis**. This process allows for the movement and distribution of nutrients and waste products within the cell, akin to how blood circulates in humans.

**Final Answer**: Cyclosis

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