Question

The enzymes present in the saliva convert
(a) fats into fatty acids and glycerol.
(b) starch into simple sugars.
(c) proteins into amino acids.
(d) complex sugars into simple sugars.


NCERT Class VIII
Science - Exemplar Problems

Chapter 2. Nutrition in Animals

Answer 1

Answer:

The correct answer is option b

Explanation:

The enzymes present in saliva converts starch into simple sugars

Answer 2

The enzymes present in the saliva convert starch into simple sugars (option-b).

• Saliva is released by three pairs of salivary glands of our mouth.
• Saliva consists of water, mucus, proteins, and enzymes named lysozyme, salivary amylase.
• Salivary amylase catalyzes the conversion of starch into simple sugars like maltose, alpha-dextrin, and isomaltose.
• The structure of starch ( a polysaccharide)  is made up of amylose and amylopectin glucose units.
• Salivary amylase hydrolyses amylose and amylopectin into small and simple glucose units.
• Fats are converted into fatty acids and glycerol by the action of the lipase enzyme.
• Proteases hydrolyze proteins into a simpler form.