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AP Biology Chapter 5 Flashcards

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7910752640polymerA large molecule made of many repeated sub units.0
7910752641monomersA molecule that might bond chemically to make a polymer.1
7910752642condensation reactionWhen two molecules combine to form a larger molecule, with the loss of a small molecule.2
7910752643dehydration reactionA chemical reaction that involves the loss of a water molecule from the reacting molecule.3
7910752644enzymesBiological molecules that act as catalysts and help complex reactions occur.4
7910752645hydrolysisA reaction involving the breaking of a bond in a molecule using water.5
7910752646carbohydratesChanged to glucose and used for energy in the body.6
7910752647monosaccharidesBuilding blocks of disaccharides and polysaccharides.7
7910752648disaccharideA sugar made of two monosaccharides.8
7910752649glycosidic linkageA type of covalent bond that joins a carbohydrate molecule and another group.9
7910752650polysaccharidesPolymeric carbohydrate molecules made of long chains of monosaccharides.10
7910752651starchA carbohydrate made of many glucose units.11
7910752652glycogenA polysaccharide that forms glucose on hydrolysis.12
7910752653celluloseA polysaccharide made of hundreds or even thousands of beta linked D-glucose units.13
7910752654lipidsA group of naturally occurring molecules including fats and waxes among others.14
7910752655fatA natural oily or greasy substance occurring in animal bodies.15
7910752656fatty acidA carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group.16
7910752657triacylglycerolAn ester made from glycerol and three fatty acids.17
7910752658saturated fatty acidNo double bonds between the individual carbon atoms of the fatty acid chain.18
7910752659unsaturated fatty acidHave one or more double bonds between carbon atoms.19
7910752660trans fatsAn industrial process that adds hydrogen to liquid vegetable oils to make them more solid.20
7910752661phospholipidsA class of lipids that are a major component of cell membranes.21
7910752662steroidsA group of cyclic organic compounds.22
7910752663cholesterolAn organic molecule important to cell membranes.23
7910752664catalystsA substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.24
7910752665polypeptidesA linear organic polymer made of a large number of amino acid residues bonded together.25
7910752666proteinNitrogenous organic compounds made of large molecules composed of one or more long chains of amino acids.26
7910752667amino acidsContaining both an amino group and a carboxyl.27
7910752668peptide bondWhen the carboxyl group of one molecule reacts with the amino group of another molecule and releases a water molecule.28
7910752669primary structureThe characteristic sequence of amino acids forming a protein.29
7910752670secondary structureThree-dimensional structure of sheets among other various things.30
7910752671alpha helixCommon secondary structure of proteins.31
7910752672beta pleated sheetTwisted pleated sheet made of beta strands connected laterally by a few backbone hydrogen bonds.32
7910752673tertiary structureOverall three-dimensional structure of a protein from folding and covalent cross linking.33
7910752674hydrophobic interactionInteractions between nonpolar molecules in a polar solvent.34
7910752675disulfide bridgesCovalent bond usually made by the coupling of two thiol groups.35
7910752676quaternary structureNumber and arrangement of multiple folded protein sub units.36
7910752677denaturationWhen proteins or nucleic acids lose their quaternary, tertiary, and secondary structures because of an outside force like stress.37
7910752678chaperoninsProtein that helps assemble and fold other proteins.38
7910752679geneA unit of heredity passed on from parents to their offspring.39
7910752680nucleic acidsComplex organic substance present in living cells.40
7910752681DNASelf-replicating, carrier of genetic information.41
7910752682RNACarries instructions from DNA.42
7910752683polynucleotidesComposed of many nucleotide units.43
7910752684nucleotidesA nucleoside linked to a phosphate group.44
7910752685pyrimidineColorless crystalline compound with basic properties.45
7910752686purinesColorless crystalline compound with basic properties forming uric acid in oxidation.46
7910752687riboseA sugar of the pentose class.47
7910752688deoxyriboseA sugar derived from ribose by replacing a hydroxyl group with hydrogen.48
7910752689double helixA pair of parallel helices around a common axis.49
7910752690antiparallelParallel but moving/oriented in opposite directions.50

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