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