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