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15 Cards in this Set

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Triglyceride
A fat, which consist of a molecule of glycerol linked to three molecules of fatty acid.
Phospholipids
Molecules that constitute the inner bilayer of biological membranes, having a polar, hydrophilic head and a nonpolar, hydrophobic tail.
Hydrophobic
Having an aversion to water; tending to coalesce and form droplets in water.
Polypeptide
A polymer (chain) of many amino acids linked together by peptide bonds.
Hydrophilic
Having an affinity for water.
Monomer
The subunit that serves as the building block of a polymer.
Lipid
One of a family of compounds, including fats, phospholipids, and steroids, that are insoluble in water.
Hydrolysis
A chemical process that lyses or splits molecules by the addition of water; an essential process in digestion.
Steroids
A class of lipids characterized by a carbon skeleton consisting of four rings with various functional groups attached.
Amino Acid
An organic molecule possessing both carboxyl and amino groups. Amino acids serve as the monomers of proteins.
Disaccharide
A double sugar, consisting of two monosaccharides joined by dehydration synthesis.
Peptide Bond
The covalent bond between two amino acid units, formed by condensation synthesis.
Enzyme
A class of proteins serving as catalysts, chemical agents that change the rate of a reaction without being consumed by the reaction.
Glycogen
An extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch.
Dehydration Synthesis
A chemical process in which polymer form as monomers are linked by the removal of water molecules. One molecule of water is removed for each pair of monomers linked. Also called condensation.