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