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Question
The breakdown of biomolecules like dipeptides, maltose and lactose takes place majorly in __________.
The breakdown of biomolecules like dipeptides, maltose and lactose takes place majorly in __________.
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Solution
The correct option is C duodenum
The breakdown of biomolecules like dipeptides, maltose and lactose majorly takes place in the duodenum region of the small intestine. Food particles reaching the duodenum from the stomach interact with the pancreatic enzymes (such as trypsin, pancreatic amylase, lipase etc.). Trypsin breaks down proteins into smaller peptides, such as dipeptides. These dipeptides are further acted upon by enzymes such as dipeptidases from the intestinal juice (succus entericus) to yield amino acids.
Amylases and lipases break down complex carbohydrates such as starch into maltose and diglycerides respectively. Maltose is further broken down into its monosaccharide form (glucose) by the enzyme maltase from succus entericus. Lactose is acted upon by the enzyme lactase to yield glucose and galactose.
These simple molecules are then absorbed by the intestine with the help of finger-like projections called villi. These villi provide high surface area for the absorption and also contain blood vessels. These molecules are absorbed by blood vessels and move throughout the body to perform various functions like cell repair, cell regeneration etc.
Ileum and jejunum are the regions in the small intestine where majorly absorption of these molecules occurs.
The breakdown of biomolecules like dipeptides, maltose and lactose majorly takes place in the duodenum region of the small intestine. Food particles reaching the duodenum from the stomach interact with the pancreatic enzymes (such as trypsin, pancreatic amylase, lipase etc.). Trypsin breaks down proteins into smaller peptides, such as dipeptides. These dipeptides are further acted upon by enzymes such as dipeptidases from the intestinal juice (succus entericus) to yield amino acids.
Amylases and lipases break down complex carbohydrates such as starch into maltose and diglycerides respectively. Maltose is further broken down into its monosaccharide form (glucose) by the enzyme maltase from succus entericus. Lactose is acted upon by the enzyme lactase to yield glucose and galactose.
These simple molecules are then absorbed by the intestine with the help of finger-like projections called villi. These villi provide high surface area for the absorption and also contain blood vessels. These molecules are absorbed by blood vessels and move throughout the body to perform various functions like cell repair, cell regeneration etc.
Ileum and jejunum are the regions in the small intestine where majorly absorption of these molecules occurs.
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