lipids Flashcards
acetic acid occurence
vinegar
propionic acid occurence
carbohydrate ermentation
butyric acid occurence
butter
caproic acid occurence
goat and cow butter
caprylic acid occurence
human fat
lauric occurence
cinnamon
capric acid occurence
fat or spice bush
myristic acid occurence
nutmeg, myrtles
palmatic acid occurence
spermaceti, beeswax
stearic acid occurence
animal and vegetable fats
palmitoleic occurence
nearly all fats
oleic acid occurence
animal and vegetal fats and oils
elaidic acid occurence
hydrogenated and ruminant fats
linoleic acid occurence
many plant oils
gamma-linolenic acid occurence
minor fatty acid in animals
a-linolenic acid occurence
particularly in linseed oil
arachidonic acid occurence
important component of phospholipids in animals
timnodonic occurence
important component of fish oil
cervonic occurence
phospholipids in brain
this has slight solubility in water
short-chain fatty acids
essentially insoluble in water
long-chain fatty acids
this completely dominates solubility considerations
nonpolar nature
if its long chain the melting point will?
decrease
saturated in room tempt is
solid
unsaturated in room temp is?
liquid
esters of fatty acids with various alcohols
simple lipids
esters of fatty acids with glycerol
fats
higher molecular weight monohydric alcohols
waxes
containing groups in addition to an alcohol
compound lipids
they have nitrogen containing bases and other substituents
phospholipids
contain carbohydrate and nitrogenous base
glycolipids
most abundant type of lipids present in the body
triacyglycerol (TAG)
storage site of TAG in the human body
adipose tissue
a lipid form by esterification
triacylglycerol (TAG)
3 identical fatty acids molecule
simple triacylglycerol
more than one kind of fatty acid and molecules
mixed triacylglycerol
the healthiest cooking oil
canola oil
the most unhealthy oil
coconut oil
up to 15 and 10% polyunsaturated fat is what kind of fat?
good fat
less than 10% from saturated fats
bad fats
a substitute for the term triacylglycerol (TAG)
fat
storage lipids
triacylglycerol (TAG)
COMPONENTS OF TAG
ALCOHOL AND FATTY ACIDS
name of the alcohol of tag
glycerol
must be obtain from dietary sources because it cannot synthesize within the body
essential fatty acids
primary member of omega-6
linoleic acid
primary member of omega-3
linolenic acid
the best known calorie reduced fat substitute
simplesse
the best known calorie free fats
olestra
means less than 0.5g of fat
fat free
means 3g or less fat
low fat
means at least 25%
reduce fat
means less than 0.5 kilo calories
calorie free
3 important membrane lipids
phospholipids, sphingoglycolipids, cholesterol
carry cholesterol from the liver
LDL
carry excess cholesterol from body tissues
HDL
transport triacylglycerols from the liver
VLDL
transport dietary triacylglycerols
chylomicrons
cardiovascular disease characterize by the buildup of plaque
atherosclerosis
a mound of lipid material mixed with calcium
plaque
a 2 layer thick structure phospholipids
lipid bilayer
3 kinds of transport across cell membranes
passive transport, facilitated transport, active transport
none required transport
passive transport
proteins serve as gates transport
facilitated transport
proteins serve as pumps transport
active transport
fluid containing emulsifying agents
bile
functions as a lipid-emulsifying agent
bile acid
a substance that can disperse and stabilize water-insoluble substances
emulsifier
they are synthesized or at other location after transport via the blood stream
messenger lipids
2 kinds of messenger lipids
steroid hormones and eicosanoids
a biochemical substance, produced by a ductless gland
hormone
a hormone that is a cholesterol derivative
steroid hormone
major classes of steroid hormones
sex hormones and adrenocorticoid hormones
control reproduction and secondary sex
sex hormones
regulate numerous biochemical processes in the body
adrenocorticoid hormones
for young women
estradiol
for pregnant women
estriol
for menopause
estrone