Digestion and absorption of carbohydrates Flashcards
How are carbohydrates digested in the large intestine
Bacteria breakdown by fermentation
How does amylase aid in the digestion of carbohydrates in the small intestine
Cleaves starch into glycosidic bonds to release monosaccrides, dissacrides or oligosaccrides
How do disaccharide enzymes help digest carbohydrates in the small intestine
Disaccharide enzymes are found at the brush border of the small intestine. These help to further breakdown carbohydrates
Write the equations showing the breakdown of carbohydrates by disaccharide enzymes
sucrose
maltose
lactose
Where do the products of carbohydrates digestion get transported to?
The inside of intestinal cells where they enter the bloodstream and travel to the liver
How does amylase in the mouth aid the digestion of carbohydrates
Amylase cleaves glycosidic bonds in order to release maltose
Why does complete starch digestion not occur in the mouth
Food is swallowed too quickly
Where is amylase inactivated
In the stomach
How are carbohydrates absorbed
Monosaccrides are transported from the brush border through the apical membrane of absorptive cells by active transport
Name 4 classifications of dietary carbohydrates
monosaxccarides, disaccrides, oligosaccrides and polysaccrides
Give an example of a monosaccride
glucose
Give an example of a disaccride
fructose
give an example of an oligodaccride
fructo-oligosaccride
Give an example of a polysaccride
starch
