9 Questions
What is the main constituent of saliva by volume?
Water
What is the main role of salivary amylase in saliva?
To begin the digestion of starch
Which pair of glands secret entirely serous secretion?
Parotid glands
What is the pH range of saliva?
Slightly acidic (6.5-7)
Which type of salivary secretion is rich in mucin to facilitate swallowing and speech?
Mucous secretion
Which process involves the enzymatic hydrolysis of food molecules into their building blocks?
Chemical Digestion
What is responsible for the first phase of deglutition?
Functions of saliva
Which food group is broken down to fatty acids and alcohols during digestion?
Lipid
What is the main role of the mouth in the alimentary canal?
Mastication of food into bolus
Test your knowledge about the composition and functions of saliva in the digestive system. Learn about the types of salivary secretions, the role of salivary amylase, and the glands responsible for saliva production.
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