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LIFE PROCESS (FULL CHAPTER) | CLASS 10 CBSE BIOLOGY Video Lecture

FAQs on LIFE PROCESS (FULL CHAPTER) - CLASS 10 CBSE BIOLOGY Video Lecture

1. What is the life process?

Ans. Life processes are the essential activities that living organisms perform to maintain their existence and carry out their functions. These processes include nutrition, respiration, transportation, excretion, and reproduction.

2. What is the process of nutrition?

Ans. Nutrition is the process by which organisms obtain and utilize their food. It involves ingestion, digestion, absorption, assimilation, and egestion. Ingestion refers to the intake of food, digestion involves breaking down complex food molecules into simpler forms, absorption is the uptake of digested food into the bloodstream, assimilation is the utilization of absorbed food for energy and growth, and egestion is the elimination of undigested waste materials.

3. How does respiration occur in living organisms?

Ans. Respiration is the process by which living organisms obtain energy from food. It involves the exchange of gases in the body. In humans, respiration occurs through breathing. During respiration, oxygen is inhaled and transported to the cells, where it combines with glucose to produce energy, carbon dioxide, and water. Carbon dioxide is then transported back to the lungs and exhaled.

4. What is transportation in living organisms?

Ans. Transportation in living organisms refers to the movement of substances within their bodies. In multicellular organisms, such as humans, transportation occurs through the circulatory system. The heart pumps blood, which carries nutrients, oxygen, hormones, and other substances to different parts of the body. It also helps in the removal of waste products from cells.

5. What is excretion and why is it important?

Ans. Excretion is the process by which waste products and harmful substances are removed from the body of living organisms. It is important because the accumulation of waste materials can be toxic and harmful to the body. Excretion helps in maintaining the balance of various substances in the body and ensures the proper functioning of organs and systems. In humans, excretion mainly occurs through the kidneys, which filter waste products from the blood and excrete them in the form of urine. Other organs involved in excretion include the lungs, liver, and skin.

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Sep 04, 2025 Last updated

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