Topic Details (Notes format)

Ecosystem and Energy Flow

Subject: General Science

Book: NCERT Biology Class 12

Study of energy transfer in ecological systems.
- **Food Chains and Food Webs**:
- Trophic levels and their roles.
- **Ecological Pyramids**:
- Pyramid of energy, biomass, numbers.
- **Energy Flow in Ecosystems**:
- Primary and secondary production.

**Possible Exam Questions:**
1. Define food chain and food web with examples.
2. What are the different types of ecological pyramids?
3. Explain the process of energy flow in an ecosystem.
4. How does human activity impact the energy flow in ecosystems?
5. Discuss the significance of trophic levels in an ecosystem.

Practice Questions

Which organelle is responsible for photosynthesis in plants?

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What is the SI unit of temperature?

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What is the function of hemoglobin in the blood?

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Which is the smallest bone in the human body?

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What is the chemical formula of methane?

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Which law states that energy cannot be created or destroyed?

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Which organ is responsible for filtering blood in the human body?

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Which gas is most abundant in Earth’s atmosphere?

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Which planet has the strongest gravitational force?

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Which metal is liquid at room temperature?

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