Overview of Metabolism Flashcards
where is everything uptaken in GI tract
small intseing
what can happen if essential acids are not eaten in diet
negative nitrogen balance
describe breakdown of protein through each of the parts of GI tract
mouth - traces of proteinases
stomach - pepsin
small intestine - trypsin and other enzymes
describe breakdown of carbohydrate through each of the parts of GI tract
mouth - alpha amylase
small intestine - alpha amylase, isomaltase, glucoamylase, lactase
describe breakdown of fat through each of the parts of GI tract
mouth - traces of lingual lipase
stomach - traces of gastric lipase
small intestine - lipase
where is water absorbed in GI tract
colon
what is the storage form of fat and where is this found
triacylglycerol
adipose tissue
does lactate to glucose make or use ATP
uses it
is fat stores used as fuel in anaerobic exercise
no
what is the limit of % of plasma [NEFA] used as fuel in exercise
60-70%
how long do liver glycogen stores last in fasting and what is used once this runs out
24h
fat and protein
describe glucose homeostasis during starvation
peak of exogenous glucose
then liver glycogen used up in 24h
then gluconeogenesis required
what does the TCA cycle produce
glucose and co2
what limits life in starvation
use of too much protein as fuel to be able to continue to funtion
what two changes are seen in blood often after surgery
high blood glucose
negative nitrogen balance
