Class 7 Science Chapter 2 Nutrition in Animals – Solutions
NCERT Class 7 Science Chapter 2 Nutrition in Animals Question-answer
Exercises
Fill in the blanks:
- The main steps of nutrition in humans are __________, __________,__________, _________ and __________.
- The largest gland in the human body is __________.
- The stomach releases hydrochloric acid and ___________ juices which act on food.
- The inner wall of the small intestine has many finger-like outgrowths called _________.
- Amoeba digests its food in the ____________ .
Answers:-
- Ingestion, digestion, absorption, assimilation and egestion.
- Liver
- Digestive
- Villi
- food vacuole.
Mark ‘T’ if the statement is true and ‘F’ if it is false:
- Digestion of starch starts in the stomach. (T/F)
- The tongue helps in mixing food with saliva. (T/F)
- The gall bladder temporarily stores bile. (T/F)
- The ruminants bring back swallowed grass into their mouth and chew it for some time. (T/F)
Answer:-
- False
- True
- True
- True
Tick (ü) mark the correct answer in each of the following:
(a) Fat is completely digested in the
- stomach
- mouth
- small intestine
- large intestine
Answer – small intestine
(b) Water from the undigested food is absorbed mainly in the
- stomach
- foodpipe
- small intestine
- large intestine
Answer – large intestine
Match the items of Column I with those given in Column II:
Column I Column II
1. Food components | a. Product(s) of digestion |
2. Carbohydrates | b. Fatty acids and glycerol |
3. Proteins | c. Sugar |
4. Fats | d. Amino acids |
Answers
1- a, 2. – c, 3. – d, 4. – b
Q. – What are villi? What is their location and function?
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