Topic Details (Notes format)

Life Processes

Subject: General Science

Book: NCERT Science Class 10

Living organisms carry out various life processes to sustain life.
- **Types of Life Processes**:
- Nutrition (Autotrophic & Heterotrophic).
- Respiration (Aerobic & Anaerobic).
- Transportation (Circulatory system in animals, Xylem and Phloem in plants).
- Excretion (Kidneys in humans, Stomata in plants).
- **Energy Flow in Living Beings**:
- ATP (Adenosine Triphosphate) as the energy currency.

**Possible Exam Questions:**
1. Differentiate between autotrophic and heterotrophic nutrition.
2. What is aerobic and anaerobic respiration? Give examples.
3. Explain the role of the human heart in the circulatory system.
4. How does excretion take place in plants and animals?
5. What is the role of ATP in living organisms?

Practice Questions

What is the most abundant gas in the Sun?

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Which process separates light into its component colors?

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What is the chemical symbol for the element iron?

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Which gas is known as "laughing gas"?

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

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Which vitamin is essential for calcium absorption?

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What is the primary source of energy for life on Earth?

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What is the approximate age of the Earth?

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What is the main component of natural gas?

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Which disease is caused by a virus?

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