Digestion Of Carbohydrates Flashcards
What is digestion
Hydrolysis of large insoluble molecules into smaller soluble ones
What happens in the mouth
The food is chewed increase surface area then salivary amylase as well as mineral salts hydrolyse any starch into Matisse by hydrolysis reaction the mineral salts maintain optimum ph
What happens in the stomach
Acidic denatures the salivary amylase so no further breakdown the stomach churns food further
What happens in the ileum
Pancreatic juices are released into the ileum which includes pancreatic amylase which hydrolysed the starch further into maltose as well as alkaline salts maintain the ph then the maltose is hydrolysed by membrane bound disaccharides earth which hydrolysis glycosidic bind releasing alpha glucose which is then absorbed through epithelial cells
How are lipids digested first
They are split into mice cella’s by bile salts in order to increase the surface are for lipase to work on
What happens to the micelles
They are hydrolysed into the monoglyceridw
What happen to the monoglyceridw I
They are lipid soluble so can diffuse through the bilateral then in the epithelial they are recombined at smooth er they are then packed into vesicles through Golgi and accounted with cholesterol and lipoproteins to form chlyomicrons
What happens to the chlyomicrons
They travel through lacteal I. The centre of the villus
How are the proteins digested
They are broken down by protease endopeptidase and exopeptideasea
What do endopeptidases do
Hydrolyse internal peptide bonds splitting the peptide chain into smaller peptide chain increasing surface area
What do exopeptidasea
Hydrolysing end peptide bonds releasing an amino acid
What do dipeptidases do and what are they
Membrane bound dipeptidases they hydrolyse dipeptidases releasing amino acids
