Flashcards in Carbohydrates Deck (27)
most abundant source of energy?
Fibre important for what 2 things?
diverticulosis and haemorrhoids
fiber and colon cancer:
Why have a low glycaemic index diet?
avoid high peak glucose levels, less insulin resistance
what is dextrose?
Draw alpha D-glucopyranose
Which organs have glucose-6-pase?
liver and kidney to release free glucose
Where is Glut 2?
liver and kidney
what happens when liver is full with glycogen?
shunted into fatty acids
what do you need to synthesize glycogen?
Glycogen response to adrenaline?
rapidly digested and mobilized
What is Pompes Disease?
lysosomes engorged with glycogen because of lack of a-1,4-glucosidase
What does cyclic AMP do in glycogen fasting/flight?
secondary messenger and a force multiplier
Plant polysaccharides are what kind of glucose?
B1-4 linked D-glucose
what is non-starch polysaccharides?
cellulose or fibre
Changes over diet in last 5000 years
not enough calcium/fibre
Hypertension in hunter gatherers?
white bread is mainly what part of wheat?
whole grain bread includes what part of wheat?
what is beriberi?
fibre does what in stomach and small intestine?
slows in stomach
speeds up in small intestine
dental caries when pH <_____
5.5 from sugars metabolised into acids by bacteria
gut transit time better if faster or slow?
better is faster with fibre
extra bulk of stool with added fibre is what?
water, fibre is hydrophilic
diverticulosis and haemorrhoids rarely seen is stools are how many grams per day?
>100 grams per day