CBSE Class 7 th Nutrition in plants and animals : Formative Assessment Q. What is food? Answer: Food is fuel for living things. Q. Why we need to eat food? Answer: Food is a basic need for all living things to live fit and active. It is because food provides energy to all living body to do their life activities. Food also helps to grow and build their bodies. Q. What are nutrients? Answer: Chemicals present in food that nourish body are called nutrients. They are Carbohydrates, Fats, protein, Vitamin, minerals, Water and roughage. Q. What is nutrition? Answer: The process of taking and utilization of food by the body is called nutrition . Q. What are the different modes of nutrition? Answer: Autotrophic, Heterotrophic, parasitic and Saprophytic nutrition. Q. What are Autotrophic and Heterotrophic nutrition? Answer: The mode of nutrition by which green plants utilize their own prepared food
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