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NCERT Textbook: Life Processes | Science & Technology for UPSC CSE PDF Download

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FAQs on NCERT Textbook: Life Processes - Science & Technology for UPSC CSE

1. What are life processes?
Ans. Life processes are the basic processes that are essential for the survival of living organisms. These processes include nutrition, respiration, transportation, excretion, and reproduction.
2. What is the role of nutrition in life processes?
Ans. Nutrition is a vital life process that involves the intake of food and its conversion into energy and other essential substances required by the body. The process of nutrition provides the necessary nutrients to the body for its growth and development.
3. What is respiration and why is it important in life processes?
Ans. Respiration is the process of inhaling oxygen and exhaling carbon dioxide. It is an essential life process as it provides energy to the body by breaking down glucose into carbon dioxide and water. The energy produced is used by the body for performing various life processes.
4. What is transportation in life processes?
Ans. Transportation is the process of the movement of substances within the body. It involves the absorption, circulation, and distribution of various substances such as oxygen, carbon dioxide, hormones, nutrients, and waste products throughout the body.
5. How is excretion important in life processes?
Ans. Excretion is the process of removing waste products from the body. It is an essential life process as it helps in maintaining the internal environment of the body by removing harmful metabolic waste products such as urea, carbon dioxide, and excess water. Failure to remove these waste products can lead to the accumulation of toxins in the body, which can be harmful to health.
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