Q.1. True/False
(i) Digestion of starch starts in the stomach.
(ii) The tongue helps in mixing food with saliva.
(iii) The gall bladder temporarily stores bile.
(iv) The ruminants bring back swallowed grass into their mouth and chew it for some time.
(v) We chew the food with the teeth and break it down mechanically into small pieces.
(vi) Large intestine receives digested and absorbed food.
Q.2. Fill in the blanks.
(i) The main steps of nutrition in humans are ____, ____, ____, ____ and ____.
(ii) The largest gland in the human body is ____.
(iii) The stomach releases hydrochloric acid and ____ juices which act on food.
(iv) The inner wall of the small intestine has many finger-like outgrowths called ____.
(v) Amoeba digests its food in the food ____.
(vi) We chew the food with the ____ and break it down mechanically into small pieces.
Answer the following Question
Q.3. Where are fats digested in the body?
Q.4. What kills bacteria that enter along with the juices to act?
Q.5. Where are faeces formed in the human body?
Q.6. Where food is absorbed in our body?
Q.7. Where faeces are stored?
Q.8. What does saliva do to food in our mouth?
Q.9. What is rumen?
Q.10. What does animal nutrition include?
Q.11. What are the different modes of feeding in animals?
Q.12. What are ruminant animals?
Q.13. What do pancreatic juices digest?
Q.14. What do you mean by rumination?
Q.15. What are the main steps involved in the process of respiration in animals?