Name the correct substrates for the following enzymes:

a. Trypsin


b. Amylase


c. Pepsin


d. Lipase

a. Trypsin acts upon peptides and converts to amino acids. So substrate is peptides.


Peptides are proteins, and trypsin is present in pancreatic juice secreted by the pancreas. It converts peptides into amino acids which are simplest forms of proteins.


b. Amylase acts upon starch.


It converts starch into maltose. Amylase is present in saliva secreted by salivary glands present in the mouth. It is also present in pancreatic juice.


c. Pepsin acts upon proteins.


Pepsin is present in gastric juice secreted by gastric glands present in the stomach. It acts upon proteins to convert into peptides.


d. Lipase acts upon emulsified fats/lipids.


Lipase is present in pancreatic juice. It acts upon emulsified fats to convert them into fatty acids and glycerol. Emulsified fats mean large fat globules are converted into small fat droplets, and this emulsification process is done by bile juice secreted from the liver.


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