Question

Chemical changes which a starch molecule undergoes from the time it reaches the duodenum to the time it carbon atom becomescarbondioxide molecules

Answer 1

first a little amount of starch is converted into MALTOSE in mouth due to the presence of salivary amylase.Later it goes to the small intestine through oesophagus and stomach but without any dig still of starch.

In small intestine starch is converted into MALTOSE in the presence of PANCREATIC AMYLASE which convert the rest protein into MALTOSE.

MALTOSE then later converted into glucose in the presence of maltase another enzyme secreted by small intestine