Q. Which one of the following equation match correctly with the action of enzymes on the given substrate and regarding the end product of the reaction?
A) Stomach $\longrightarrow$ Fats $\overset{\ Lipase\ \ }{\rightarrow}$ Micelles
B) Small intestine $\longrightarrow$ Protein $\overset{\ Pepsin\ \ }{\rightarrow}$ Amino acid
C) Small intestine $\longrightarrow$ Starch $\overset{\ amylase\ \ }{\rightarrow}$ Disaccharides
D) Duodenum $\longrightarrow$ Triglycerides $\overset{\ Trypsin\ }{\rightarrow}$ Monoglycerides
Explanation
$\alpha$-amylase is found in pancreatic juices. Enzyme amylase converts starch into disaccharides, like maltose, isomaltose and dexrins in the small intestine. Starch $\overset{\ Amylase\ \ }{\rightarrow}$ Maltose (disaccharides) Equation (a) is incorrect as stomach do not contains any fat emulsifying agent In equation (b) is incorrect as proteins are converted to dipeptides, i.e., two amino acids by the enzymes trypsin and equation (d) triglycerides are converted to diglycerides and fatty acids by lipase enzyme
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.