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2. Nutrition in Animals-Long Answered Questions Science Class 7 In English
Last Updated : 06 March 2026
Explore science Solutions for Class 7 Chapter 2. Nutrition in Animals Topic Long Answered Questions in English medium.
2. Nutrition in Animals-Long Answered Questions Science Class 7 In English
Last Updated : 06 March 2026
2. Nutrition in Animals-Long Answered Questions Science Class 7 In English
2. Nutrition in Animals
Long Answered Questions
Long Answered Questions:
Ques:- What is assimilation?
Ans:- The absorbed substances are transported via the blood vessels to different organs of the body where they are used to build complex substances such as the proteins required by the body. This process is called assimilation.
Ques:- What is tooth decay?
Ans:- If we don’t clean our mouth properly after eating it results in growth of harmful bacteria, which break down the sugars present from leftover food and release acids. These acids damage the teeth. This is called tooth decay.
Ques:- Write the functions of saliva.
Ans:- The functions of saliva;
(i) It makes the chewed food soft for swallowing.
(ii) It breaks down the starch into sugars.
Ques:- Write the functions of tongue.
Ans:- The functions of tongue;
(i) We use our tongue for taking.
(ii) It mixes saliva with the food.
(iii) It helps in swallowing food.
(iv) We taste food with our tongue.
Ques:- Name the processes which define the nutrition in human beings.
Or
Ques:- Name the complex processes by which nutrition is completed.
Ans:- There are five complex processes which define the nutrition in human beings.
(i) ingestion
(ii) digestion
(iii) absorption
(iv) assimilation
(v) egestion
Ques:- What are villi? Write its function.
Ans:- Many small finger-like outgrowths are situated in the inner walls of small intestine, these are called villi.
The villi increase the surface area for absorption of the digestive food.
Ques:- Why can we not digest the cellulose like the cattle?
Ans:- The cattle have a large sac-like structure called caecum between the small intestine and large intestine. The cellulose of the food is digested here by the action of the certain bacteria which are not present in humans.
Ques:- Name the structure in amoeba which helps it to capture the food.
Ans:- Pseudopodia
Ques:- How does amoeba take food?
Ans:- When amoeba senses food it pushes out pseudopodia around the food particle and engulfs it. The food becomes trapped in a food vacuole. Digestive juices are secreted into the food vacuole. They act on the food and break it down into simpler substances. Gradually the digested food is absorbed.
Ques:- Draw a label diagram of amoeba.
Ans:-
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NCERT Solutions for Class 7 science Chapter 2. Nutrition in Animals Topic Long Answered Questions
NCERT Solutions for Class 7 science Chapter 2. Nutrition in Animals Topic Long Answered Questions are prepared to help students understand important concepts of the chapter in a simple and clear manner. These solutions are based on the latest CBSE syllabus and follow the official NCERT textbooks. Students who are searching for accurate answers and step-by-step explanations can use these solutions to improve their learning and prepare better for school exams as well as board examinations.
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About Chapter 2. Nutrition in Animals of Class 7 science
Chapter 2. Nutrition in Animals is an important part of the Class 7 science syllabus. This chapter explains several key concepts which are essential for understanding the subject in detail. Students often face difficulties while solving textbook questions related to this chapter. That is why NCERT Solutions for Chapter 2. Nutrition in Animals are provided to explain every concept in a simple and structured way.
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2. Nutrition in Animals-Long Answered Questions Science Class 7 In English
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