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