Digestion of Lipids
Jul. 14th, 2009 02:51 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
What enzyme in the mouth begins lipid digestion?
lingual lipase
What can lingual lipase digest?
TGs-->monoglycerides, and FFA
What enzyme in infants turns milk into paracasein?
rennin aka chymosin
What cells make rennin in infants?
gastric chief cells
What enzyme then digests the paracasein?
pepsin
What adult gastric enzyme hydrolyzes TGs, short and medium chain fatty acids?
gastric lipase
Where do the hydrolyzed fats go from the stomach?
into the portal circulation
What causes micelle formation in the intestine?
bile
emulsifies
What happens to the micelles?
they are absorbed into intestinal cells where they are
re-esterified and packaged into chylomicrons
then exocytosed into lymph system
What hydrolyzes cholysteryl esters to free cholesterol???
cholesterol esterase
What enzymes attacks phospholipids to produce FFA, glycerol, choline (bases) and phosphoric acid?
phospholipase
remember phospholipase A is the one that gets fatty acids out of membranes
Where do the non-lingual lipases come from?
pancreas
no subject
Date: 2009-07-15 03:21 am (UTC)When is (are) the board(s) you are studying for? Is it a series of tests?
no subject
Date: 2009-07-15 06:44 pm (UTC)I'm studying for basic science boards. It's one full day of multiple guess testing. The material is the first two years of medical school: biochemistry, microbiology, pathology, anatomy and physiology. I can't continue in my program unless I pass these. After two more years I'll take the clinical boards (two days of testing in summer 2011) and the state boards.
Not sure where I'll take the state boards. I might take them here in Oregon, or I might come to AZ to take them. Or maybe NC or VA will have licensure laws by then and I'll go back east. We shall see.
no subject
Date: 2009-07-17 03:36 pm (UTC)What is the date for your science boards?
no subject
Date: 2009-07-17 05:16 pm (UTC)no subject
Date: 2009-07-17 12:42 am (UTC)no subject
Date: 2009-07-17 02:21 am (UTC)no subject
Date: 2009-07-17 10:53 am (UTC)no subject
Date: 2009-07-17 05:14 pm (UTC)no subject
Date: 2009-07-18 12:20 am (UTC)(And BTW, I am one of those people who really does follow through!)
no subject
Date: 2009-07-18 02:13 am (UTC)