Ncert- science – class 7- Chapter 2 – Nutrition in Animals 1 Welcome to your Ncert- science - class 7- Chapter 2 – Nutrition in Animals 1 1. Choose the correct order of terms that describes the process of nutrition in ruminants. Chewing of cud → → Swallowing → → Mixing with digestive juices → → Digestion Swallowing → → Chewing and mixing → → Partial digestion → → Complete digestion Swallowing → → Partial digestion → → Chewing of cud → → Complete digestion Chewing of cud → → Swallowing → → Partial digestion → → Complete digestion None 2. During cellulose fermentation by anaerobic bacteria in rumen and reticulum, cellulose is mainly changed into: Ethyl alcohol Volatile fatty acids CO2 Lactic acid None 3. Which of the following is NOT a physical process of digestion? Emulsification Peristalsis Mastication Churning None 4. Choose the correct statement. Canines help in tearing the food. Incisors help in biting the food. All of the above Molars help in grinding the food. None 5. The primary dentition in humans differs from permanent dentition in not having one of the following types of teeth: Molars Canine Incisors Premolars None 6. Cud is the name given to the food of ruminants which is Swallowed and partially digested. Properly chewed and partially digested. Properly chewed and completely digested. Swallowed and undigested. None 7. In ruminants, bacterial action occurs in the 8. Cellulose digestion in ruminants occurs in ________. Omasum Rumen Abomasum Reticulum None 9. In ruminant stomach, the rumen is the All the above Chamber having cellulose fermenting microorganisms Largest chamber Chamber having villi with cornified surface None 10. Which of the following phenomena helps in the degradation of complex substances of food into simpler ones? Digestion Ingestion Excretion Assimilation None 11. Which one/two part of compound stomach of cattle are rich in methanogens ? Oppasurn Rumen Both A and B Whole compound stomach None 12. Which of the following pairs of teeth performs a common function as stated against it? Incisors & canines - Holding Canines & premolars - Biting Molars & incisors - Tearing Premolars & molars - Grinding None 13. What is the length of highly coiled small intestine? 20 feet 28 feet 21 feet 25 feet None 14. 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 cellulose High intake of glucose None 15. Select the incorrect pair- Residual bodies - Autolysis Golgi apparatus - Glycosidation of lipids Contractile vacuole - Helps in excretion in Amoeba Secondary lysosome - Digestive vacuole None 16. Which of the following animals are involved in the fluid feeding mode? Cow Honey bees Amoeba None of the above None 17. Similar cone-shaped teeth are Homodont Acrodont Thecodont Diphyodont None 18. The tongue is a fleshy muscular organ attached at the back to the floor of the_______. None of the above stomach cavity buccal cavity nasal cavity None 19. 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 was permanent tooth By telling him that his tooth was milk tooth By telling him that his tooth will be replaced None 20. In digestion the unused parts of the food are________ defecated converted utilised None of the above 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.
