Fatty Acids Flashcards
FTSPST
first thing starts post sex trip
first
fatty acids
thing
triacylgycerols
starts
sphingolipids
post
phosphatidyls
sex
steroids
trip
terpenes
Fatty acids are comprised of…
alkyl chains terminated by carboxylic acid groups O=C–OH
saturated
indicates that the acyl chain is fully reduced
Cis fatty acids
rotation space keeps them away from head of phosphates –> low density fats
Saturated chains…
pack tightly and form more rigid, organized aggregates (e.i. membranes)
Unsaturated chains…
bend and pack in a less ordered way
triacylglycerols are a…
major source of energy for organisms b/c they are the most reduced form of carbon, no solvation needed, efficient packing
triacylglycerols
formed from glycerol and fatty acids
simple triacylglycerols
all 3 fatty acids are the same
mixed triacylglycerols
contain 2 or 3 diff. fatty acids
glycerophospholipids are…
essential components in cell membranes
glycerophospholipid
diglycerol w/ a phosphate group
unsaturated fatty acids are found typically….
at the 2-position of the glycerol backbone
Phosphatidyl
a glycerophospholipid (review structure)
catalytic triad
amino acids found in the active site (serine, histidine, aspartic acid)
PAF
platelet activating factor
sphingolipid
based on the structure of sphingosine
sphingosine
is an 18-carbon alcohol
cerebroside
a ceraminde w/ a single sugar
gangliosides are…
important components of muscle and nerve membranes
gangliosides
ceramides w/ three or more sugar esterfied, one of which is a sialic acid
waxes
consist of a long-chain alcohols esterfied to long-chain fatty acids
waxes are…
hydrophobic bc of
Terpenes
a class of lipids formed from combinations of isoprene units
isoprene
2-methyl-1,3- butadiene
cortisol
provides control of carbohydrate, protein, and lipid metabolism
Testosterone
the primary male sex hormone
estradiol
the primary female sex hormone
progesterone
a precursor for testosterone and estradiol
Bile acids
cholic and deoxycholic acid (steroids)
