Describe lipid digestion, absorption, and transport in the body. (5 multiple choice and 4 matching). Flashcards
what happens in the stomach during digestion?
fat and watery digestive juices tend to separated
what happens in the small intestine during digestion?
gallbladder secretes bile. brings the fat into the water
what happens after emulsification in digestion?
more fat is exposed to the enzymes. fat digestion proceeds efficiently
what does the liver do during digestion?
synthesizes bile
what does the gallbladder do during digestion?
stores and concentrates bile
what breaks down triglycerides during digestion?
enzymes from pancreas
what percentage of dietary fat is absorbed?
95%
where are short and medium chain fatty acids absorbed?
hepatic portal vein
where are long-chain fatty acids absorbed?
lymphatic system
where are proteins located in lipoproteins?
in the shell
help to identify lipoproteins
where are triglycerides located in lipoproteins?
in the core
where are phospholipids located in lipoproteins?
they form the shell
where is cholesterol found in lipoproteins?
transported within the lipid core
what are the major lipoproteins in blood?
chylomicron
VLDL
LDL
HDL
what is the primary component of chylomicron?
triglyceride
what lipoprotein carries dietary fat from the small intestine to liver and cells?
chylomicron
what is the primary component of VLDLs?
triglyceride
what lipoprotein carries lipids made and then taken up by the liver to cells?
VLDL
what is the primary component of LDL?
cholesterol
what lipoprotein carries cholesterol made by the liver and from other sources to cells?
LDL
what is the primary component of HDL?
protein
what lipoprotein contributes to cholesterol removal from cells and, in turn excretion of it from the body?
HDL
what is a lipid carrier?
lipoprotein
where is chylomicron made?
GI tract
what is chylomicron’s affect on CVD?
neutral risk for CVD
where is VLDL made?
liver
where is LDL made?
from VLDL
what do LDLs have a high proportion of?
cholesterol
is the cholesterol in LDLs good or bad?
bad
is the cholesterol in HDLs good or bad?
good
what do HDLs have a high proportion of?
protein
