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 type of blood vessel carries blood away from the heart?

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What is the chemical symbol for the element iron?

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

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What type of macromolecule is an enzyme?

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Which organelle is responsible for photosynthesis in plants?

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Which gas is released during photosynthesis?

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Which particle is responsible for the negative charge of an atom?

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What is the unit of frequency?

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Which part of the human eye is responsible for focusing light on the retina?

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What is the most abundant element in the universe?

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