Lipids Flashcards
What is the way a FA is named in terms of A:B (C)
A No of carbons
B number of double bonds
C location of double bonds
What are TAGs
Esters of FA and glycerol,
Omega 3 is a nonessential fatty acid, what does this mean
Not produced in the body and have to be obtained from diet
What are the benifits of taking omega 3
Lowers plasma cholesterol, therefore decreasing risk of artherosleorsis, lowers TAG preventing obesity
What is Steatorrhea
Malabsorption of lipid in the intestine resulting in floating poo, fowl smelling . Caused by removal of gall bladder
Which one of these is good and bad for cardiovascular: LDL and HDL
LDL is bad
HDL is good
In beta oxidation, Fa are activated . Where the do they head to
They have to go to the mitochondria matrix
What are the 4 stages of degradation
Dehydrogenation
Hydration
Dehydrogenation
Triolysis
Very long fatty acids require the formation of a structure before b oxidation. What is this structure called
Peroxisome
What does B oxidation produce and where does this occur
Keto bodies in the liver
What is the main keto bodie called
Beta hydroxybutyrate
What is the name of enzyme in the liver r3sponible for keto body production
hmg CoA synthase
Ketone bodies are produced where in the cell
Mitochondrial matrix
Ketone bodies are not soluble therefore require transport around the blood, true or false
False
In the formation of fatty acids, elongation occurs, what are the 4 steps
Condensation Reduction Dehydration Reduction Conducted 7 times to get palmityl CoA
What are the 3 main classes of steroids
Cholesterol
Steroid hormones
Bile salts
Stations regulate cholesterol by controlling what enzyme
HMG CoA reductase causing decrease of LDL levels
What are eiconoids
Come from 20 carbon unsaturated fatty acid eicosonic acid . And precursors for prostaglandins and leukotrienes
Eicosonoids have a short half life, true or false
True, produced when needed and act locally
How do NSAIDS work
Inhibit COX1 and COX2 which are r3sponsible for the production in prostaglandins
What is a use for prostaglandin analog
Induces labour
