LIPIDS Flashcards
are a HETEROGENEOUS GROUP OF COMPOUNDS, including fats, oils, steroids, waxes, and related compounds
lipids
what are the SAPONIFIABLE LIPIDS?
Biological waxes
Triacylglycerol
Sphingoglycolipids
Phospholipids
what are the NONSAPONIFIABLE LIPIDS
Bile acids
Eicosanoids
Cholesterol
Steroid hormones
BUILDING BLOCKS OF LIPIDS
fatty acids
a fatty acid with a carbon chain in which all CARBON-CARBON BONDS ARE SINGLE BONDS
saturated fatty acid
a fatty acid with a carbon chain in which one CARBON-CARBON DOUBLE BOND IS PRESENT
monounsaturated fatty acid
a fatty acid with a carbon chain in which TWO OR MORE CARBON-CARBON DOUBLE BONDS ARE PRESENT
polyunsaturated fatty acid
VINEGAR OCCURENCE
acetic acid
an end product of CARBOHYDRATE EMENTATION by rumen organisms
propionic acid
GLYCERIDES in BUTTER
butyric acid
goat and cow butter; coconut fat
caproic acid
goat and cow butter; coconut fat; human fat
caprylic acid
goat and cow butter; coconut fat; fat of spice bush
capric acid
spermaceti, cinnamon, palm kernel oil, coconut oils, laurels, butter
lauric
nutmeg, palm kernel, coconut oils, myrtles, butter
myristic acid
animal and vegetable fats; spermaceti; beeswax
palmitic acid
animal and vegetable fats
stearic acid
esters of fatty acids with VARIOUS ALCOHOLS
simple lipids
esters of fatty acids containing GROUPS IN ADDITION to an alcohol and a fatty acid
complex lipids
STORAGE SITE OF TRIACYLGLYCEROLS in the human body, specifically in the special cells
adipose tissue
MOST ABUNDANT TYPE OF LIPIDS present in the body
triacylglycerol
what is the healthiest oil?
canola oil
what is the unhealthiest oil?
coconut oil
it is considered a GOOD FAT
monousaturated and polyunsaturated fat
it is considered a BAD FAT
saturated fats
primary member of OMEGA-6 acid family
linoleic acid
primary member of OMEGA-3 acid famiy
linolenic acid
carry cholesterol FROM THE LIVER to various cells or tissues of the body
LDL
carry EXCESS CHOLESTEROL FROM BODY TISSUES BACK TO THE LIVER for degradation to bile acids
HDL
TRANSPORT TRIACYLGLYCEROLS from the liver to adipose tissue
VLDL
TRANSPORT DIETARY TRIACYLGLYCEROLS from the intestines to the liver and adipose tissue
chylomicrons
a form of CARDIOVASCULAR DISEASE characterized by the buildup of plaque along the inner walls of arteries
atheroscleriosis
a MOUND OF LIPID MATERIAL mixed with smooth muscle cells and calcium
plaque
a TWO-LAYER-THICK STRUCTURE of phospholipids and glycolipids in which nonpolar tails of the lipids are in the middle of the structure and the polar heads are on the outside surfaces of the structure
lipid bilayer
protein help: NONE REQUIRED
passive transport
protein help: PROTEINS SERVE AS GATES
facilitated transport
proteins help: PROTEINS SERVE AS PUMPS
active transport
a fluid containing EMULSIFYING AGENTS THAT IS SECRETED BY THE LIVER, stored in the gallbladder, and released into the small intestine during digestion
bile
a CHOLESTEROL DERIVATIVE that functions as a lipid-emulsifying agent in the aqueous environment of the digestive tract
bile acid
a substance that CAN DISPERSE AND STABILIZE water-insoluble substances as colloidal particles in an aqueous solution
emulsifier
is a biochemical substance, produced by a DUCTLESS GLAND, that has a messenger function
hormone
is a HORMONE that is a CHOLESTEROL DERIVATIVE
steroid hormone
which control reproduction and SECONDARY SEX CHARACTERISTICS
sex hormones
which regulate NUMEROUS BIOCHEMICAL processes in the body
adrenocorticoid hormones
most commonly measured type of estrogen for NONPREGNANT WOMAN
estradiol
levels usually are only measured during PREGNANCY
estriol
may be measured in women who have gone through MENOPAUSE to determine their estrogen levels
estrone
is an OXYGENATED C20 FATTY ACID derivative that functions as a messenger lipid
eicosanoids
are HORMONELIKE molecules rather than true hormones because they are not transported in the bloodstream to their site of action as true hormones are
eicosanoids
is a lipid that is a MONOESTER OF A LONG-CHAIN FATTY ACID and a long-chain alcohol
biological wax