lipids Flashcards
what are lipids composed of
CHO, while some have NSP
what are the 3 types of lipids
fats, steroids and phospholipids
how are triglycerides formed
one molecule of glycerol is combined with three molecules of fatty acids (can be diff), where one water molecule is removed for each fatty acid joined to the glycerol via ester linkage which is a bond formed by a dehydration reaction
what is special in unsaturated fat
the c=c double bonds cause a structure kink, preventing adjacent fat molecules from packing together
what is the difference between cis and trans fatty acids
natural unsaturated fatty acids are in cis transfiguration where 2 H atoms are at the same side of the double bond while trans is the opposite
how do you convert unsaturated fat to saturated fat
hydrogenation may cause it to change into a trans configuration. high intake of this may raise blood cholesterol
what are steroids
four interconnected rings of carbon atoms
insoluble in water
gives rigidity to animal cell membranes
precursor for the synthesis of hormones such as test
important - cholestrol
