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 organ stores and releases glucose in the human body?

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What is the primary component of the Sun?

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What is the boiling point of water at standard atmospheric pressure?

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What is the unit of electric current?

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What is the most abundant element in the universe?

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What is the SI unit of power?

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What is the main purpose of stomata in plants?

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Which part of the plant conducts water?

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Which of the following is a fundamental force in nature?

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Which gas is commonly used in balloons to make them float?

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