Topic Details (Notes format)

Cell: Structure and Functions

Subject: General Science

Book: NCERT Science Class 8

The cell is the basic unit of life.
- **Types**:
- Plant cells (cell wall, chloroplast).
- Animal cells (no cell wall).
- **Cell Components**:
- Nucleus (controls activities).
- Cytoplasm (contains organelles).
- **Functions**:
- Growth, repair, reproduction.

**Possible Exam Questions:**
1. What is the difference between plant and animal cells?
2. How does the nucleus control cell activities?
3. What are the functions of different cell organelles?
4. Why is the cell called the basic unit of life?
5. Explain the process of cell division.

Practice Questions

What is the primary component of the Sun?

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What is the function of platelets in the human body?

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Which organelle is known as the "powerhouse of the cell"?

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What is the most abundant gas in the Sun?

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Which is the largest planet in the Solar System?

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Which gas is known as "laughing gas"?

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Which process in plants is responsible for the loss of water vapor?

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What is the function of hemoglobin in the blood?

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What is the approximate age of the Earth?

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What is the pH of pure water at 25°C?

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