Q-18 Read the following and answer any four questions from 18 (i) to 18 (v)
The length of the small intestine differs in various animal depending on the food they eat. Herbivores eating grass
need a longer small intestine to allow the cellulose to be digested. Meat is easier to digest, hence carnivores like
tigers have a shorter small intestine.
The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretion
of the liver and pancreas for this purpose. The food coming from the stomach is acidic and has to be made alkaline
for the pancreatic enzyme to act. Bile juice from the liver accomplishes this in addition to acting on fats. Fats are
present in the intestine in the form of large globules which makes it difficult for enzymes to act on them. Bile salts
break them down into smaller globules increasing the efficiency of enzyme action.
(i) Which category of animal have shorter small intestine?
(a) Carnivorous (b) omnivorous
(c) herbivorous (d) decomposers
(ii) Why herbivores have largest small intestine?
(a) To digest fats (b) To digest proteins (c) To digest cellulose (d) To digest carbohydrates.
(iii) The small intestine is a site of the complete digestion of:
(a) carbohydrates
(b) proteins
(c) fats
(d) all of these
(iv) What is the nature of food in the stomach and what is done for the pancreatic enzymes to act?
(a) acidic, made more acidic
(b) alkaline, made acidic
(c) acidic, made alkaline
(d) alkaline, made more alkaline
(v) What is the function of bile juice secreted by the liver?
(a) bile juice makes the medium alkaline (b) bile juice help in the emulsification of fats
(c) bile salts present in the bile juice break fats into smaller globules increasing the efficiency of enzyme
action.
(d) all of these.
Answers
Answered by
1
Answer:
- (a) Carnivorous
- (c) To digest cellulose
- (d) all of these
- (c) acidic, made alkaline
- (d) all of these.
Answered by
2
Answer:
i) Ans= Carnivorous a) no is the correct answer
ii) Ans= To digest cellulose (c) no. is the correct answer
iii) Ans= All of these ( d) no. is the correct answer
v) Ans= c) no. is the correct answer
Similar questions