Question

Fat is converted into fatty acid and glycerol by enzyme :

• A. amylase
• B. lipase
• C. ptyalin
• D. trypsin

Answer 1

Answer: (B)

Fat is converted into fatty acid and glycerol by lipase.
The enzymes which are required for the digestion of fars are called lipases which are soluble in water and insoluble in fats and oil.
Fats $\stackrel{\text{ lipase }}{\to }$ fatty acids $+$ Triglycerides Triglycerides $\stackrel{\text{ lipase }}{\to }$
Diglycerides Diglycerides $\stackrel{\text{ lipase }}{\to }$ Monoglycerides
Monoglycerides $\stackrel{\text{ lipase }}{\to }$ Glycerol $+$ fatty acids.
In oral cavity, the food is mixed with saliva.
The saliva contains an enzyme called ptyalin which converts starch into maltose, isomaltose and small dextrins called $\alpha$ dextrins.
Starch $\stackrel{\text{ lipase }}{\to }$ Maltose $+$ Isomaltose $+\alpha$-Dextrins The pancreatic juice contains starch digesting enzyme, called pancreatic a amylase which converts starch into maltose, is omaltose and a-dextrins.
Starch $\underset{\text{ Pancreatic }}{\overset{\alpha \text{ - Amylase }}{\to }}$ Maltose $+$ Isomaltose $+\alpha$-dextrins Trypsin enzyme converts proteins into peptides.
Proteins $\stackrel{\text{ Trypsin }}{\to }$ Large peptides