Ncert- science – class 7- Chapter 2 – Nutrition in Animals 1 Welcome to your Ncert- science - class 7- Chapter 2 – Nutrition in Animals 1 1. Which of the following pairs of teeth performs a common function as stated against it? Canines & premolars - Biting Molars & incisors - Tearing Incisors & canines - Holding Premolars & molars - Grinding None 2. During cellulose fermentation by anaerobic bacteria in rumen and reticulum, cellulose is mainly changed into: CO2 Lactic acid Ethyl alcohol Volatile fatty acids None 3. Which of the following animals are involved in the fluid feeding mode? Cow None of the above Honey bees Amoeba None 4. In ruminant stomach, the rumen is the Chamber having cellulose fermenting microorganisms Chamber having villi with cornified surface Largest chamber All the above None 5. Select the incorrect pair- Secondary lysosome - Digestive vacuole Residual bodies - Autolysis Golgi apparatus - Glycosidation of lipids Contractile vacuole - Helps in excretion in Amoeba None 6. In digestion the unused parts of the food are________ converted utilised defecated None of the above None 7. Which of the following is NOT a physical process of digestion? Emulsification Peristalsis Mastication Churning None 8. The tongue is a fleshy muscular organ attached at the back to the floor of the_______. buccal cavity stomach cavity nasal cavity None of the above None 9. Cellulose digestion in ruminants occurs in ________. Abomasum Rumen Reticulum Omasum None 10. Which one/two part of compound stomach of cattle are rich in methanogens ? Whole compound stomach Oppasurn Both A and B Rumen None 11. Choose the correct statement. Incisors help in biting the food. Molars help in grinding the food. All of the above Canines help in tearing the food. None 12. Cud is the name given to the food of ruminants which is Properly chewed and partially digested. Properly chewed and completely digested. Swallowed and undigested. Swallowed and partially digested. None 13. What is the length of highly coiled small intestine? 20 feet 28 feet 21 feet 25 feet None 14. Choose the correct order of terms that describes the process of nutrition in ruminants. Chewing of cud → → Swallowing → → Partial digestion → → Complete digestion Swallowing → → Chewing and mixing → → Partial digestion → → Complete digestion Chewing of cud → → Swallowing → → Mixing with digestive juices → → Digestion Swallowing → → Partial digestion → → Chewing of cud → → Complete digestion None 15. Which of the following phenomena helps in the degradation of complex substances of food into simpler ones? Excretion Ingestion Assimilation Digestion None 16. Which of the following is responsible for partial digestion in the mouth of ruminants? High intake of lactose None of the above High intake of glucose High intake of cellulose None 17. Soham is 6 years old. He was playing in the garden. One of his teeth fell as he dashed a pillar. He started crying because he was hurt. He also felt that his teeth will never come back and he will not be able to eat chocolates. How will you console him? Both By telling him that his tooth was milk tooth andBy telling him that his tooth was permanent tooth By telling him that his tooth will be replaced By telling him that his tooth was permanent tooth By telling him that his tooth was milk tooth None 18. Similar cone-shaped teeth are Diphyodont Acrodont Thecodont Homodont None 19. In ruminants, bacterial action occurs in the 20. The primary dentition in humans differs from permanent dentition in not having one of the following types of teeth: Incisors Molars Canine Premolars None Time's upTime is Up! Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
