Final answer:
Option b is correct option. The α-1,6 bonds in amylopectin are digested by the enzyme α-dextrinase.
Step-by-step explanation:
The enzyme responsible for digesting the α-1,6 bonds in amylopectin is α-dextrinase. Unlike other amylase enzymes such as salivary and pancreatic amylase, which predominantly digest α-1,4 glycosidic linkages, α-dextrinase specifically targets the α-1,6 glycosidic bonds at the branching points in starch and glycogen, producing isomaltose. Therefore, the correct option is a. α-dextrinase.
The correct enzyme involved in the digestion of α -1,6 bonds in amylopectin is d. maltase.
The pancreatic amylase, mentioned in the options a and c, is involved in the digestion of starch and glycogen but cannot break the α -1,6 bonds present in amylopectin.
Salivary amylase, mentioned in option b, is responsible for the initial breakdown of starch in the mouth, but it cannot break the α -1,6 bonds either.
On the other hand, maltase is an enzyme produced by the cells lining the small intestine and is involved in the final digestion of maltose into glucose.