Flashcards in Digestion Deck (26)
Starch is a ___________.
Polysaccharide contains a large number of _______ monosaccharide units joint together by _____ bonds.
All PLANT seeds and tubers contain starch predominately as ______ and _______.
Long unbranched chains of glucose, with glucose units linked at C1 and C4 - represent alpha 1,4 bonds.
Highly branched polymer of glucose, with glucose units linked by alpha 1,4 in linear fashion and 1,6 bonds at the branched which occur at every 24 to 30 glucose units.
Glycogen has similar (to amylopectin) ______ and _____ ______ bonds
Alpha 1,4 and 1,6 glycosidic
Three major classes of carbohydrates
Glucose and fructose are ________.
Sucrose, lactose, and maltose are ________.
Starch is a _________.
Sucrose is made up of _____ and ______.
Glucose and fructose
Lactose is made up of?
Glucose and galactose
Humans can only process sugars with the ____ formation.
D - dextra (think Delicious Disaccharides)
A polysaccharide with several 100 to 10,000 beta 1,4 linked D-glucose units.
Why can't humans digest cellulose?
They lack enzyme cellulase
Salivary amylase breaks down what?
Maltese is made up of?
Two glucose molecules
Pancreatic amylase aka?
This enzyme is present in small intestine cleaving 1/4 links to release di- and polysaccharides facilitating starch breakdown.
Pancreatic amylase (alpha amylase)
Breaks down trisaccharides into mono- and di- saccarides.
Breaks down disaccharides into the monosaccharide - glucose, fructose, and galactose.
Breaks down sucrose into fructose and glucose
Breaks down lactose into galactose and glucose.
Lactose is secreted by what?
What happens with lactose intolerance?
Undigested lactose remains in gut and ferments causing bloating and diarrhea.