What will happen if mucus is not secreted by the gastric glands? Question 1. (c) salt and sweet Free PDF download of Important Questions with solutions for CBSE Class 7 Science Chapter 6 - Physical and Chemical Changes prepared by expert Science teachers from latest edition of CBSE(NCERT) books. Therefore, tooth decay is defined as the process of rotting of tooth and formation of cavity or holes in it which leads to the toothache. Answer: Answer: Answer: (d) makes the medium alkaline It releases intestinal juices and is involved in digestion. [NCERT Exemplar; HOTS] ‘A’ got her gall bladder removed surgically as she was diagnosed with stones in her gall bladder. (d) oesophagus, small intestine, large intestine, rectum [NCERT Exemplar] (a) fatty acids (b) inner lining of stomach Amoeba is a microscopic, single celled animal. (c) digests starch into simpler sugars Molars are very large teeth which are present behind the premolar, towards the back of our mouth. Read the following statement with reference to the “Villi” of small intestine and choose the correct option. Answer: (a) Enamel Answer: There are four types of teeth found in human being. Tooth decay can be prevented by adapting following measures. The absorption of nutrients or food components in its simpler form takes place in Question 25. Answer: Answer: He asked his father. 2. Suddenly, Boojho started coughing violently. Register online for Science tuition on Vedantu.com to score more marks in your examination. Both of them poured 1-2 drops of iodine solution into the test tube and observed the colour change. (c) Incisors and molars Answers: 5. (a) The largest gland in our body. Question 8. [Value Based Question] The swallowed food moves downwards in the alimentary canal because of the atternate relaxation contraction movement of muscles in the wall of foodpipe called peristalsis. (b) Molars and premolars Answer: Question 6. All the others are gland. Chapter 10 – Life in the Deserts; Class 7 History – Our Pasts II. Answer: True. water, salts, Question 8. It is called ‘hicki’ in our local language. [NCERT Examplar], Answers: Stomach is the odd one. Question 12. Time – 05 Minutes. Match the Column I with Column II. (c) Removal of undigested and unabsorbed solid residues of food from the body. What is assimilation? 3. Answer: They have very thin walls to pass digested nutrients through diffusion. Name the simple forms of carbohydrates, fats and proteins. Simplest form of fat is sugars and glucose. A. Answer: Answer: No. Question 1. It may result in a choking sensation called hiccups. We have Provided Fibre to Fabric Class 7 Science MCQs Questions with Answers to help students understand the concept very well. They are also called as temporary teeth because these are lost at the age of 6-8 years. Quiz - MCQ Questions for Class 7 Science Chapter 6 with answers. 8. Question 23. it constantly changes its shape and position. Question 1. Answer: In which of the statements is or are incorrect, about eating habits of animals? They are given some parts of the digestive system, choose the odd one. (a) blood vessels of small intestine wall, Question 10. 8. Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. (b) protects the stomach lining from harmful substances After surgical removal of gall bladder, ‘A’ would face problems in digestion of fat and fatty substances when consumed in bulk. Here in this Page Class VI Students can Learn Extra Questions & Answer 2nd Chapter Science fully Inside. These vacuoles are of two types, i.e. The finger-like projections called villi are present in the inner walls of the small intestine. Draw a neat and clean diagram of Amoeba showing the correct location of the following components : nucleus, vacuole, pseudopodia. Boojho took some grains of boiled rice in test tube ‘A’ and Paheli took boiled and chewed rice in test tube ‘S’. At home the ORS can be prepared by dissolving a teaspoonful of sugar and pinch of salt in a glass of clean water. Nutrition in Animals Class 7 Extra Questions and Answers Science Chapter 2 PDF are solved by experts and will guide students in the right direction. (c) taste of the food is perceived Yes, carnivores animals cannot digest cellulose, hence they have a shorter small intestine. The undigested food residue is expelled outside by the vacuole. It captures food and helps in locomotion of Amoeba. (d) The organ where bile juice gets stored. (b) (ii), (iii) and (iv) False (adsbygoogle = window.adsbygoogle || []).push({}); The inner surface of small intestine has many finger-like outgrowth called “Villi” to help in absorption of food. Name the parts of the alimentary canal where The body of Amoeba has finger-like projections, called pseudopodia or false feet. If Yes, then you are the right page. However, if we do not clean our teeth and mouth after eating, many harmful bacteria also begin to live and grow in it. Explain how is small intestine designed to absorb digested food. food vacuole, Question 5. (a) What is hiccup? True Motion and Time Class 7 MCQs Questions with Answers. Egestion is the process of removing waste food or undigested food through anus. The swallowed food moves downwards in the alimentary canal because of [NCERT Exemplar] Questions for he most important chapters will be picked and asked in the examinations. The content in the stomach is then pushed back. (b) Digestion Large intestine is the longest part of digestive system of human. In large intestine, most of the water is reabsorbed. True, Question 6. Alimentary canal is different from digestive system. The digestion of food starts in mouth and the digestion is completed in small intestine and the rest options are correct. 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