Contents

Saliva is the mixture of water and …….
a) mucus                                              
b) salts
c) enzymes                           
d) all of these


d

What is the function of mucus present in saliva?
a) digestion of food                   
b) lubrication of food
c) breakdown of food        
d) all of these


b

What is the function of salt present in saliva?
a) digestion of food                            
b) kills the germ
c) makes the food alkaline               
d) both b and c

d

Which of the following enzyme is/are present in saliva?
a) protease                                           
b) amylase
c) lipases                                               
d) all of these

b

Chemical digestion of starch and glycogen is started in……………
a) oral cavity                      
b) pharynx
c) oesophagus                     
d) stomach

a

Chemical digestion of starch and glycogen is started by……………
a) bile                                    
b) gastric juice
c) saliva                                               
d) HCl


c