Science

Nutrition in Animals

Question:

Tick (S) mark the correct answer in each of the following:
(a) Fat is completely digested in the
(i) stomach (ii) mouth (in) small intestine (iv) large intestine

(b) Water from the undigested food is absorbed mainly in the:
(i) Stomach (ii) Food pipe (iii) Small intestine (iv) Large intestine

Answer:

(a) (iii) Small intestine (b) (iv) Large intestine

previuos
next

Nutrition in Animals

Q 1.

Tick (S) mark the correct answer in each of the following:
(a) Fat is completely digested in the
(i) stomach (ii) mouth (in) small intestine (iv) large intestine

(b) Water from the undigested food is absorbed mainly in the:
(i) Stomach (ii) Food pipe (iii) Small intestine (iv) Large intestine

Q 2.

Write one similarity and one difference between the nutrition in amoeba and human beings.

Q 3.

What are villi? What is their location and function?

Q 4.

Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also.

Q 5.

Can we survive only on raw, leafy vegetables/grass? Discuss.

Q 6.

Fill in the blanks:
(a) The main steps of nutrition in humans are ___________, ___________, ___________ , ___________ and ___________
(b) The largest gland in the human body is ___________.
(c) The stomach releases hydrochloric acid and ___________ juices which act on food.
(d) The inner wall of the small intestine has many finger-like outgrowths called ___________
(e) Amoeba digests its food in the ___________ .

Q 7.

Why do we get instant energy from glucose?

Q 8.

Mark ‘T' if the statement is true and ‘F' if it is false:
(a) Digestion of starch starts in the stomach. (T/F)
(b) The tongue helps in mixing food with saliva. (T/F)
(c) The gall bladder temporarily stores bile. (T/F)
(d) The ruminants bring back swallowed grass into their mouth and chew it for sometime. (T/F)

Q 9.

Where is the bile produced? Which component of the food does it help to digest?

Q 10.

Q.4.Match the items of column I with those given in column II:

Q 11.

Match the items of Column I with suitable items in Column II.
.ncert-solutions-class-7-science-chapter-2-nutrition-in-animals-02

Q 12.

Label Fig. 2.11 of the digestive system (as given in the NCERT Textbook Exercise)

ncert-solutions-class-7-science-chapter-2-nutrition-in-animals-04

Q 13.

Which part of the digestive canal is involved in:
(i) Absorption of food ________ .
(ii) Chewing of food ________ .
(iii) Killing of bacteria ________ .
(iv) Complete digestion of food ________ .
(v) Formation of faeces ________ .