BioChem Flashcards
PreBoards (265 cards)
Naturally occur in living organisms and consist mostly of
carbon, hydrogen, oxygen and nitrogen
BIOMOLECULES
Essential for various body functions & manufactured
within the body
BIOMOLECULES
Heterogenous group of organic compounds that are
insoluble in water and soluble in nonpolar organic
solvents.
LIPIDS
Nonpolar organic solvents
Diethyl ether
Acetic acid (very common)
Benzene
Hexane
CCl4 (Carbon tetrachloride)
Ethyl acetate
Chloroform
An important source of energy
LIPIDS
Naturally occur in most plants, microorganisms and
utilized as components of the cell membrane, energy
storage molecules, insulation and hormones.
Lipids
Glycerol + Fatty Acid
Lipids
Sparingly insoluble or insoluble but soluble in organic
solvents
Lipids
Lipids make up the membrane of the cell called
Lipid bilayer
Energy-rich molecules mostly made up of hydrocarbons.
Lipids
Fatty acids, glycerol, sphingosine, and sterol are its
primary building blocks
Lipids
Fat cells known as
Adipocytes
Compose the basic structure of all cell membranes (3)
Phosphoglycerides, sphingolipids and steroids
Monomer of Lipid
Fatty acid
Fatty Acids with a carbon chain in which all carbon-carbon bonds are single bonds
SATURATED FATTY ACIDS
Fatty acids with a carbon chain in which there is a
presence of one carbon-carbon double bond
MUFAs
Fatty acids with a carbon chain in which there is a
presence of 2 or more carbon-carbon double bond
PUFAs
When carbon chain length increases, solubility
decreases
Carbon chain length and the number of double bonds
present / degree of unsaturation determines a fatty
acid’s
melting point
Unsaturated fatty acid - Melting point decreases as
degree of unsaturation
increases
Energy-storage lipids
(Triacyglycerols)
Saturated fatty acid - Carbon length increases,
melting point
increases
Membrane Lipids
Phospholipids, Sphingoglycolipids, Cholesterol
Emulsification Lipids
Bile Acids