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Biology 11 Chapter - 11
Digestion - 5
1.
The infection of the peritoneal cavity is known as?
a) sinusitis
b) appendicitis
c) appendectomy
d) peritonitis
2.
The functions of the digestive system are regulated by?
a) both of these
b) hormonal mechanism
c) none of these
d) nervous mechanism
3.
How much saliva is secreted daily by the oral cavity?
a) 3 liter
b) 2 - 4 liter
c) 1 - 1.5 liter
d) 5 liter
4.
The saliva contains the enzyme?
a) salivary trypsin
b) salivary rennin
c) salivary pepsin
d) salivary amylase
5.
The enzyme salivary amylase breaks down the?
a) fats
b) nucliccids
c) polysacharides
d) disacharides
6.
How much of the total carbohydrates are digested in the oral cavity?
a) 3 - 5 %
b) 8 - 9 %
c) 10 %
d) 50 %
7.
Mastication of food takes place in the?
a) intestine
b) oral cavity
c) oesophagus
d) stomach
8.
Starch is digested by?
a) salivary amylase
b) pepsin
c) lipase
d) nucleotidase
9.
The bacterial infection is prevented by the salivary enzyme?
a) pepsin
b) lysozyme
c) amylase
d) trypsin
10.
The favourable range of pH for the functions of salivary amylase is?
a) 8 - 10
b) 6 - 7
c) 3 - 5
d) 2 - 4
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