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Ch 5 Macromolecules

AP Bio Campbell

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217962446polymerlarge molecule formed when many smaller molecules bond together
217962447monomera simple compound whose molecules can join together to form polymers
217962448condensation reactiona chemical reaction in which two or more molecules combine to produce water or another simple molecule
217962449dehydration reactionA chemical reaction in which two molecules covalently bond to each other with the removal of a water molecule.
217962450hydrolysisa chemical reaction in which water reacts with a compound to produce other compounds
217962451monosaccharidea simple sugar that is the basic subunit of a carbohydrate
217962452disaccharideA double sugar, consisting of two monosaccharides joined by dehydration synthesis.
217962453polysaccharidelong polymer chain made up of simple sugar monomers
217962454glycosidic linkageA covalent bond formed between two monosaccharides by a dehydration reaction.
217962455glycogenAn extensively branched glucose storage polysaccharide found in the liver and muscle of animals; the animal equivalent of starch.
217962456cellulosea polysaccharide that is the chief constituent of all plant tissues and fibers
217962457fatty acidwith glycerol, make up the building blocks of lipids
217962458triglyceride3 fatty acids (chains of hydrocarbons) bonded to a glycerol, most fats are eaten and absorbed in this form, carbohydrate
217962459saturated fatty acidA fatty acid in which all carbons in the hydrocarbon tail are connected by single bonds, thus maximizing the number of hydrogen atoms that are attached to the carbon skeleton.
217962460unsaturated fatty acidhas one or more double bonds, formed by the removal of hydrogen atoms from the carbon skeleton
217962461phospholipida lipid that contains phosphorus and that is a structural component in cell membranes
217962462cholesterola type of fat made by the body from saturated fat; a minor part of fat in foods
217962463steroida type of lipid that consists of four carbon rings to which various functional groups are attached and that usually has a physiological action
217962464conformationThe specific three dimensional arrangement of atoms in a molecule
217962465polypeptidea peptide containing 10 to more than 100 amino acids
217962466amino acidsbuilding blocks of proteins
217962467peptide bondcovalent bond formed between amino acids
217962468primary structureThe first level of protein structure; the specific sequence of amino acids making up a polypeptide chain.
217962469secondary structureThe second level of protein structure; the regular local patterns of coils or folds of a polypeptide chain.
217962470tertiary structureThe third level of protein structure; the overall, three-dimensional shape of a polypeptide due to interactions of the R groups of the amino acids making up the chain.
217962471quaternary structureThe fourth level of protein structure; the shape resulting from the association of two or more polypeptide subunits.
217962472alpha helixA spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure.
217962473pleated sheetOne form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds.
217962474hydrophobic interactionA type of weak chemical bond formed when molecules that do not mix with water coalesce to exclude the water.
217962475disulfide bridgesStrong covalent bonds formed when the sulfur of one cysteine monomer bonds to the sulfur of another cysteine monomer
217962476chaperone proteinsProteins that help another protein fold properly; elevated levels of this protein are found when the cell is exposed to elevated temperatures
217962477DNAdeoxyribonucleic acid, the material that contains the information that determines inherited characteristics
217962478nucleotidesmonomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
217962479pyrimidinea nitrogenous base that has a single-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; thymine, cytosine, or uracil
217962480purinea nitrogenous base that has a double-ring structure; one of the two general categories of nitrogenous bases found in DNA and RNA; either adenine or guanine
217962481ribosea five-carbon monosaccharide found in RNA
217962482deoxyribosea five-carbon sugar that is a component of DNA nucleotides
217962483double helixThe form of native DNA, referring to its two adjacent polynucleotide strands wound into a spiral shape.

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