When Alok sees his favourite dish rajma rice at lunch, the gland A secrete substance B. He enjoys the food, chew and grind it well, the food(rajma rice) gets mixed well with substance B.The substanceB contains an enzyme C which starts the digestion of food in the mouth.The slightly digested food from the mouth goes down a tube D. The special type of movement E in the walls of tube D that pushes the food into the stomach for further digestion.
ON THE BASIS OF ABOVE INFORMATION,ANSWER THE FOLLOWING QUESTION:
(a) Identify A,B,C,D and E
(b) What is another name of D?
(c)Define digestion.
(d)Which part of food is digested in the mouth?
(e)What is the function of enzyme C and gland A?
Answers
Answer:
Ans a) A-Salivary gland
B-Saliva
C-Salivary amalyse
D- Food pipe
E - Peristalsis
Ans-b) Another name for Food pipe is oesophagus
Ans-C) Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma.
Ans-d) Mousca is digested in mouth
Ans-e) Function of gland A i.e, Salivary gland is that it releases saliva which contains enzyme C i. e.,Salivary amalyse.Function of salivary amalyse:Salivary amylase initiates starch hydrolysis in the mouth, and this process accounts for not more than 30% of total starch hydrolysis. Because salivary amylase is inactivated by an acid pH, no significant hydrolysis of carbohydrates occurs in the stomach.
Answer:
a. A. Salivary Gland
B. Saliva
C. Lysosomes
D. Muscular Tube
E. Peristalisis
b.Oesophagus
c.Digestion means breking of food into small pices for digeting.
d.mousca
e. lysosomes have the function of recyclling