If mucus is not released, it will lead to erosion of inner lining of stomach leading to acidity and ulcers. Write the terms that describe each process. 7. Explain how the digestion of cellulose occurs in grass eating animals. (c) tongue, absorption, taste, swallow Open your mouth, look into a mirror and try to count the different types of teeth of teeth in your mouth. Explain. All the questions are taken from Class 7 Science NCERT Book Chapter 2. These test will provide a complete revision for second chapter of grade 7 science. (c) Tongue, because rest all are digestive processes and tongue is a part of digestive system. (d) nitrogen dioxide. Read the following statement with reference to the “Villi” of small intestine and choose the correct option. In an adult human, there are total 32 teeth. Class 6 Science Chapter 2 Extra Inside Questions and Answers – Components of Food. Question 3. (d) complex sugars into simple sugars Answer: Amoeba digests its food inside ……… These vacuoles are of two types, i.e. It is also known as digestive tract. However, the finger-like outgrowths of human intestine helps to. Two solutions A and B have pH values of 5 and 8 respectively. Ruminants such as cows and buffaloes swallow their food hurriedly and store it in a part of the stomach called rumen. This process is called rumination and these animals are called ruminants. False, diarrhoea can be treated by giving a solution of sugar and salt in the clean water for several times in a day. Question 3. Question 8. Answer: Extra Questions Class 7 History: Here we have given History-Our Pasts II History Extra Questions and Answers for CBSE Class 7 Students. Answer: No. (c) taste of the food is perceived (b) Breaking of complex food substances into simpler and soluble substances. Read the following passage carefully and answer the questions that follow it. (d) cellulose breaks down into smaller components which are egested as roughage (c) Bile juice helps in digestion of fat by breaking down big fat droplets into smaller droplet. Answer: (b) small intestine The content in the stomach is then pushed back. Answer: Question 17. (c) How does bile juice help in digestion of that of other nutrients? Rumen possess cellulose digesting bacteria which breakdown the food by fermentation. Extra Questions for Class 7 Science NCERT. The cellulose digesting bacteria are not present in the body of human being, therefore human beings and other carnivore cannot digest cellulose present in plant food items. (d) Small intestine, because it carriers the process of digestion and rest are not involved in digestion. Read the following sentences carefully and choose which of the statements is or are incorrect? Alimentary canal is the tube running from mouth to anus of human and animals here digestion and absorption of food take place. This solution is called ORS. Suddenly he got hiccups. Answer: Soil. NCERT solutions for Class 7 Science have been provided below to aid the students with answering the questions correctly, using a logical approach and methodology. Answer: Much use of cold drink should also be avoided.”, Question 2. (a) fatty acids This digested food is returned to the buccal cavity for the complete process of digestion”. Oral rehydration solution is the solution of sugar and salt in a particular ratio in the clean water. When Amoeba senses its food, it pushes out pseudopodia around the food particle and engulfs it. Animals are ……. Question 15. (d) (i) and (iv) Answer: Solution B. Given below from (i) to (iv) are some food items. Read the following statements with reference to the villi of small intestine. Pancreas secretes pancreatic juices which act on carbohydrate, fats and proteins and change them into simpler compounds. The body of Amoeba has finger-like projections, called pseudopodia or false feet. (a) kills the harmful bacteria that may enter along with the food Later, this partially digested food is returned to the buccal cavity of the animals in small lumps and animal chews it to complete the process of digestion. (i) They have very thin walls. Hence, herbivores need a longer small intestine to allow complete digestion of cellulose. Using Class 7 Science Chapter 4 Extra Questions prepare your class test, school exams and get the complete knowledge of Chapter 4 of Class 7 Science for session 2020-2021. The function of mucus is to protect the lining of stomach from the action of hydrochloric acid secreted by stomach lining. (a) linings of small intestine Question 1. Food moves in the opposite direction during vomiting. A. If you have done the MCQ test once, you can see the answers and explanation of each answer. What do people expect from government in a democracy? Four kinds of teeth present in human are ……, …….., …….. and …….. Answer: (d) liver Tutorial for Learning C Programming: Is It Possible to Learn the Programming Language Online. Match the Column I with Column II. CBSE Class 7th Science solutions provide ample material to enable students to form a good base with the fundamentals of the NCERT Class 7 Science textbook. The digested food is absorbed at illum of small intestine by finger like structures called villi. Check the below NCERT MCQ Questions for Class 7 Science Chapter 3 Fibre to Fabric with Answers Pdf free download. It is moved between two teeth to take out True (c) Removal of undigested and unabsorbed solid residues of food from the body. (b) The number and type of teeth varries in an adult as compared to the child. The acids gradually damage the tooth. An oxide is acidic and has a pungent odour. Ruminant can digest cellulose (carbohydrate). Compare them with figure 2.3 on page 13 of your NCERT textbook. (d) liver. Answer: Question 2. … It is because the cellulose digesting bacteria are not present in the body of human beings due to which human beings cannot digest cellulose (present in plant foods). Answer: (a) Transportation of absorbed food to different parts of body and their utilisation. Cellulose rich food substances are good source of roughage in human beings. They have very thin walls to pass digested nutrients through diffusion. The complete process of nutrition in ruminants occurs as: At home the ORS can be prepared by dissolving a teaspoonful of sugar and pinch of salt in a glass of clean water. The villi increase the surface area. (a) human beings do not have cellulose: digesting enzymes Question 16. Do you agree? ….. is the simplest form of carbohydrate. (iv) They are finger-like projections. Animals that obtain their food by killing other animals, called carnivorous and animals which feed on the remains of dead animals preyed by predators, called scavengers. Answer: (b) Name the solution of sugar and salt in water. Answer: It could be. (a) blood vessels of small intestine wall, Question 10. Both of them poured 1-2 drops of iodine solution into the test tube and observed the colour change. Question 13. 6. However, the finger-like outgrowths of human intestine helps to [NCERT Exemplar] (b) swallowed and partially digested, Question 12. ……. heterotrophic, Question 9. incisor, cannines, premolar, molar, Question 1. The basic process of digestion of food and release of energy is as similar to the other organisms. Question 1. (a) hiccups and cough Yes, carnivores animals cannot digest cellulose, hence they have a shorter small intestine. Food vacuole contains food surrounded by water while contractile vacuole contains liquid or water and controls water regulation activity in Amoeba. His father smiled and explained him that it is only a myth. The alimentary canal with its associated glands constitute the digestive system. (a) water gets absorbed from undigested food (c) What are the values shown by Rishi? After the surgery, she faced problems in digestion of certain food items when consumed in bulk. Question 9. Question 1. As … The finger-like outgrowths of Amoeba helps to ingest food. When the holes or cavity reaches to the pulp cavity, it causes pain. Answer: Answer: Chapter 6: Physical and Chemical Changes. …… is the long tube-like structure which Answer: (ii) They have a network of thin and small blood vessels close to the surface. We have Provided Fibre to Fabric Class 7 Science MCQs Questions with Answers to help students understand the concept very well. Draw the labelled diagram of tongue showing different region for taste buds. (d) Digestion of fat is completed in small intestine. Answer: Question 3. What will happen if mucus is not secreted by the gastric glands? Class 7 Science Chapter 4 Important Questions and Keywords of Heat updated for new academic session 2020-21. (d) Premolars and canines Answer: (a) Yes, the difference has been observed in the number of molars. More questions will be added as per requirement or need of the users. Briefly describe the mechanism of producing hiccups while we take food in hurry. Which of the statement is or are incorrect about “teeth”? Question 30. It releases intestinal juices and is involved in digestion. (a) swallowed and undigested 8. Question 4. Click “Next” to start the quiz Question 1. Answer: (c) glycerol MCQ Type Extra Questions (1) Name the state two decides to give 40 percent of the entire state budgets to panchayats (a) Kerala (b) Bombay (c) Delhi (d) Orrisa. Tooth decay can be prevented by adapting following measures. Students can solve these Motion and Time Class 7 MCQs Questions with Answers and assess their preparation level. The undigested faecal matter is removed through the anus by the process called egestion. (c) rumen These fine droplets are further converted into fatty acids and glycerol. Which of the above will give blue-black colour when tested with iodine? Jaya’s mother who was listening the discussion came to them and told Rani not to come for coming 3-4 days. Large intestine is the longest part of digestive system of human. He also explained him the proper scientific reason behind it. The finger-like projections called villi are present in the inner walls of the small intestine. NCERT Extra Questions for Class 7 Social Science Civics Chapter 2 Role of the Government in Health. Think of the reasons, why he was coughing and discuss with your friends? (a) Assimilation Answer: False, digestion of starch normally begins in the mouth where it is broken down into smaller sugar molecules, glucose. Question 14. Answer: Question 2. If Yes, then you are the right page. Free PDF download of Important Questions with solutions for CBSE Class 7 Science Chapter 3 - Fibre to Fabric prepared by expert Science teachers from latest edition of CBSE(NCERT) books. (d) oesophagus, small intestine, large intestine, rectum [NCERT Exemplar] Answer: Sweets and Tooth Decay The tooth is covered by white, hard outer covering of tooth called Enamel enamel below which dentine is present. List the preventive measures that one should adopt for avoiding tooth decay. Download PDFs of the Question Papers 8. This time the chewed cud does not go back to rumen but enter into the other compartments of cow’s stomach and then into the small intestine for complete digestion and absorption of food. 5. Answer: Welcome to Quiz – Class 7 Science chapter 2. True (b) Sometimes, when we eat too fast in a hurry or talk too much or laugh while eating, then a little of windpipe remains open due to which food particles may enter the windpipe. In order to prevent dehydration, the person or patient should be given ORS. Chapter 7: Weather, Climate, and Adaptations of Animals to Climate The three digestive glands are. Students are advised to practice the NCERT MCQ Questions for Class 7 Science Chapter 2 Nutrition in Animals with Answers Pdf free download is available here. Here we have covered Important Questions on all topics for Class 7 Science subject. water, salts, Question 8. Answer: CBSE Science Class 7 Chapter Wise Solved Q&A . (c) Egestion However, in “Amoeba” the finger like projections are called “pseudopodia” that helps it to catch food particles and to move. (a) Starch, because rest all are glands and starch is a type of carbohydrate. (a) Bile juice is secreted by liver. Class: VII . Following statements describe the five steps in animal nutrition. Answer: (a) Did you observe any difference in the number of teeth? Parasites are Autotrophs. This partially digested food or grass present in the rumen of cow is called cud. All the others are gland. Boojho took some grains of boiled rice in test tube ‘A’ and Paheli took boiled and chewed rice in test tube ‘S’. Answer: Mucus protects the inner lining of stomach form the action of hydrochloric acid and enzyme pepsin. Answer: The shape of stomach is like flattened U-shaped. Answer: Question 10. Answer: These glands are salivary glands, liver and pancreas. A butterfly uses its feeding tube to suck nector from flowers. (d) amino acids, Question 6. ORS makes up the loss of water and salts in the body and sugar provides energy which helps in the recovery of disease. Human digestive system consists of mouth, oesophagus, stomach, small intestine, large intestine, rectum and anus. Suggest the organ of digestive system where the digestive juices from liver and pancreas is poured. The gall bladder releases the bile juice into the small intestine whenever food reaches there. You can refer to NCERT Solutions for Class 7 Science Chapter 2 Nutrition in Animals to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams. (b) Pulp cavity, Question 16. (a) movement only If, by chance, food particles enter the windpipe, we feel choked, get hiccups or cough. There are four types of teeth found in human being. Ruminants such as cows and buffaloes swallow their food hurriedly and then sit restfully and chew their food. The food of Amoeba are microscopic organisms like tiny plants and animals present in pond water. Important Main Point in Class 7 Science Chapter 2 1. They are only present in the permanent set of teeth and are 6 in each jaw. (c) sleep Refer to figure on page 17. True The swallowed food moves downwards in the alimentary canal because of [NCERT Exemplar] With the help of labelled diagram show the gradual decay of tooth. (b) Molars and premolars, Question 3. Small intestine is the odd one. How? How can you prepare ORS at home? Points To Remember; Answer: What is the total number of teeth in an adult human? 6. Question 8. Question 7. Discuss the role of hydrochloric acid secreted by gastric glands. Question 13. Chapter 3 Fibre to Fabric Class 7 Extra Questions. Answers: The acids gradually damage the tooth. Draw a neat and clean diagram of Amoeba showing the correct location of the following components : nucleus, vacuole, pseudopodia. Attempt at least 5 tests to test your exam preparation based on Class 7 Science Chapter 2. It should be given to a patient suffering from diarrhoea at a regular interval. Answer: Question 12. 1.1 Class 7 Social Science Extra Questions- Devotional path; 1.2 Class 7 Social Science Extra Questions- On Equality; 1.3 Class 7 Social Science Extra Questions- Political Formations; 1.4 Class 7 Social Science Extra Questions- Regional Cultures; 1.5 Class 7 Social Science Extra Questions- The Mughal Empire Nutrition is not necessary for all organisms. Ingestion, Question 2. 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Quiz - MCQ Questions for Science easily because they are not involved in digestion of cellulose takes a time...
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