Chapter 5
DIGESTION AND ABSORPTION
1.Name the following
a. The antibacterial enzyme present saliva of man which helps prevention of infection
b. Digestive enzyme present in saliva
Ans:-
a. Lysozyme
b. Salivary amylase
2. Protein digestion by protiolytic enzyme is given below
a. Name the enzyme marked A and B
b. Identify the gland which secretes these enzymes
Ans:-
a. A- Chymotypsin
B- carboxy peptidase
3. From the following list. Pick out the enzymes that takes part in carbohydrate digestion ( salivary amylase, peptidase ,lipase, carboxy peptidase)
Ans:- salivary amylase
4. In human beings dentition is heterodond
This condition means
a. Presence of two type of teeth
b. Presence of two sets of teeth
c. Presence of different types of teeth
d. Teeth are placed in sockets of jaw
Ans:- presence of different types of teeth
5. Observe the following figure
a.Name the figure
b. Label the A ,Band D
Ans:-
a. Cross section of small intestine
b. A- serosa
B- muscularis
6. Observe the given diagram and answer the following questions
a. Identify the duct labelled the A and the secretion it pours into the duodenum
b. Mention two function of secretion in digestion
a. Bile duct and bile
b. Bile emulsifes fat and activate lipases
7. The end product of fat digestion are not absorbed directly into the blood system . Justify
Ans:- The end product of fat digestion are fatty acids and glycerol . These are insoluble in water. So they are not absorbed such as into
8. The break down of biomacro molicule in the duodenum is mentioned below fill in the blank boxes with currect terms
9. Observe the diagram
a. Label the A and B
b. Even though concentrated Hcl is stored in the stomach it will not generally damage stomach wall .why?
Ans:-
a. Cardiac stomach
Prioric stomach
b. Mucus layer in stomach and bicarbonate present in gastric juice protects stomach wall
10. Strong acidic food in the stomach stimulates the secretion of secretin from duodenal wall
a. What is the rule of secretion in digestion?
b. On which part of the digestive tract does secretin act?
Ans:-
a. Stimulates secretion of water and bicarbonate
b. Stomach
DIGESTION AND ABSORPTION
1.Name the following
a. The antibacterial enzyme present saliva of man which helps prevention of infection
b. Digestive enzyme present in saliva
Ans:-
a. Lysozyme
b. Salivary amylase
2. Protein digestion by protiolytic enzyme is given below
b. Identify the gland which secretes these enzymes
Ans:-
a. A- Chymotypsin
B- carboxy peptidase
3. From the following list. Pick out the enzymes that takes part in carbohydrate digestion ( salivary amylase, peptidase ,lipase, carboxy peptidase)
Ans:- salivary amylase
4. In human beings dentition is heterodond
This condition means
a. Presence of two type of teeth
b. Presence of two sets of teeth
c. Presence of different types of teeth
d. Teeth are placed in sockets of jaw
Ans:- presence of different types of teeth
5. Observe the following figure
a.Name the figure
b. Label the A ,Band D
Ans:-
a. Cross section of small intestine
b. A- serosa
B- muscularis
6. Observe the given diagram and answer the following questions
b. Mention two function of secretion in digestion
a. Bile duct and bile
b. Bile emulsifes fat and activate lipases
7. The end product of fat digestion are not absorbed directly into the blood system . Justify
Ans:- The end product of fat digestion are fatty acids and glycerol . These are insoluble in water. So they are not absorbed such as into
8. The break down of biomacro molicule in the duodenum is mentioned below fill in the blank boxes with currect terms
a. Label the A and B
b. Even though concentrated Hcl is stored in the stomach it will not generally damage stomach wall .why?
Ans:-
a. Cardiac stomach
Prioric stomach
b. Mucus layer in stomach and bicarbonate present in gastric juice protects stomach wall
10. Strong acidic food in the stomach stimulates the secretion of secretin from duodenal wall
a. What is the rule of secretion in digestion?
b. On which part of the digestive tract does secretin act?
Ans:-
a. Stimulates secretion of water and bicarbonate
b. Stomach
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