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AP Biology-Unit 1 Biochemistry Review Flashcards

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5093829401Catabolic pathwaysmetabolic pathways that breaks down molecules into smaller units to release energy0
5093829402Word Roots: -lysissplit (glycolysis: the splitting of glucose into pyruvate)1
5093829403proton charge+1,2
5093829404proton mass in amu.13
5093829405electron charge-14
5093829406neutron charge05
5093829407proton locationnucleus6
5093829408neutron locationnucleus7
5093829409electron locationoutside nucleus in orbitals8
5093829410electron mass in amu.09
5093829411neutron mass in amu.110
5093829412isotopesatoms of one element that vary only in amount of neutrons. chemically identical.11
5093829413ionic bondstransfer of electrons12
5093829414Anionan atom that gains electrons (negative ion)13
5093829415Cationan atom that loses an electron (positive ion)14
5093829416covalent bondsatoms share electrons, creating a molecule15
5093829417single covalent bondtwo atoms share a pair of electrons16
5093829418non-polar bondelectrons are shared equally between two identical atoms. H-H. will not dissolve in water17
5093829419polar bondatoms are shared unequally. C-H. will dissolve in water polar bond does not necessarily equal polar molecule18
5093829420specific heatthe amount of heat a substance must absorb to increase 1 gram of the substance by 1C19
5093829421bicarbonate ionblood buffer20
5093829422universal solventwater21
5093829423organic compounda compound that contains carbon22
5093829424carbonalways forms 4 covalent bonds with carbon atoms as well as to atoms of many other elements23
5093829425major classes of organic compoundscarbohydrates, lipids, proteins, and nucleic acids24
5093829426ratio of hydrogen to oxygen in a carbohydrate2/125
5093829427empirical formula for all carbsCm(H2O)n26
5093829428three classes of carbsmonosaccharides, disaccharides, and polysaccharides.27
5093829429monosaccharideschemical formula: C6 H12 O6. Glucose, galactose, and fructose (isomers of one another).28
5093829430disaccharideschem formula: C12 H22 O11. consist of two monosaccharides joined by dehydration synthesis/condensation (removal of one molecule of water)29
5093829431hydrolysisbreakdown of a compound. reverse of dehydration synthesis30
5093829432sucrose + water --> glucose + fructosehydrolysis31
5093829433polysaccharidespolymers of carbohydrates and are formed as many monos. join via dehydration synthesis.32
5093829434five important polysaccharidescellulose, starch, chitin, glycogen, peptidoglycan33
5093829435chitinimportant polysaccharide, found in animals. makes up exoskeleton in arthropods (and cell walls in mushrooms) Contains peptide cross bridges.34
5093829436glycogenimportant polysaccharide, "animal starch". stored in liver and skeletal muscle in humans.35
5093829437lipidsfunctions: energy storage, structure, and endocrine. organic compouds: fats, oils, waxes, and steroids. hydrophobic. consist of 1 glycerol and 3 fatty acids.36
5093829438glycerola trihydoroxy alcohol37
5093829439fatty acida longnhydrocarbon chain with a carboxyl group at one end. either saturated or unsaturated38
5093829440steroidslipid based hormones ex: testosterone, cholesterol, and estradiol.39
5093829441saturated fatsgenerally come from animals, solid at room temp, linked to heart disease. ex: butter!40
5093829442proteinsenzymes, most hormones, antibodies, structural, pigments etc....41
5093829443-OHhydroxyl group42
5093829444-COOHcarboxyl43
5093829445-NH2amino44
5093829446PO4-2phosphate group45
5093829447dipeptidea molecule consisting of tow amino acids connected by one peptide bond46
5093829448nucleic acideither RNA or DNA. polymers, carry all heriditary info. made of nucleotides.47
5093829449nucleic acid make-upa phosphate, 5-carbon sugar, nitrogenous base48
5093829450induced fitThe change in shape of the active site of an enzyme, induced by entry of the substrate so that it binds more snugly to the substrate.49
5093829451kinetic energyThe energy of motion; the energy of a mass of matter that is moving. Moving matter does work by imparting motion to other matter.50
5093829452metabolic pathwayA series of chemical reactions that either builds a complex molecule or breaks down a complex molecule into simpler compounds.51
5093829453metabolismThe totality of an organism's chemical reactions.52
5093829454non-competitive inhibitorA substance that impedes the activity of an enzyme without entering an active site. By binding elsewhere on the enzyme, a noncompetitive inhibitor changes the shape of the enzyme so that the active site no longer functions.53
5093829455potential energyThe energy that matter possesses because of its location or arrangement. Water behind a dam and chemical bonds possess potential energy.54
5093829456substrate(1) A specific substance (reactant) on which an enzyme acts. Each enzyme recognizes only the specific substrate or substrates of the reaction it catalyzes. (2) A surface in or on which an organism lives.55
5093829457cholesterollipid used as the base for many steroids56
5093829458Phospholipids in Cell MembranesA phosphate group (PO4-) replaces one of the three fatty acids normally found on a lipid. The addition of this group makes a polar "head" and two nonpolar "tails". Aligned tail to tail so the nonpolar areas form a hydrophobic region between the hydrophilic heads on the inner and outer surfaces of the membrane.57
5093829459active siteThe part of an enzyme molecule where a substrate molecule attaches (by means of weak chemical bonds); typically, a pocket or groove on the enzyme's surface.58
5093829460adenosine triphosphate (ATP)main energy source for cells59
5093829461co enzymeAn organic molecule serving as a cofactor. Most vitamins function as coenzymes in important metabolic reactions.60
5093829462cofactorA nonprotein molecule or ion that is required for the proper functioning of an enzyme. (coenzyme)61
5093829463competitive inhibitorA substance that reduces the activity of an enzyme by binding to the enzyme's active site in place of the substrate. A competitive inhibitor's structure mimics that of the enzyme's substrate.62
5093829464endergonic reactionAn energy-requiring chemical reaction, which yields products with more potential energy than the reactants.63
5093829465energy of activationThe amount of energy that reactants must absorb before a chemical reaction will start.64
5093829466entropyA measure of disorder or randomness. also called S65
5093829467enzymeA protein (or RNA molecule) that serves as a biological catalyst, changing the rate of a chemical reaction without itself being changed into a different molecule in the process.66
5093829468CatabolismThe breaking down of materials67
5093829469Oxidative PhosphorolationThe production of ATP from ADP and P during Cellular Respiration ( oxidation of glucose)68
5093829470Glycosidic linkageThe bond between to monosaccharides to form a disaccharide69
5093829471Peptide bondThe bond between two amino acids70
5093829472Condensation Reactionanother name for Dehydration Synthesis71
5093829473amino acidBuilding blocks of protein (monomer)72
5093829474amine groupthe nitrogen-containing portion of an amino acid -NH273
5093829475carboxyl groupA functional group present in organic acids and consisting of a single carbon atom double-bonded to an oxygen atom and also bonded to a hydroxyl group -COOH74
5093829476R groupAmino acid side chain- different for each amino acid75
5093829477peptide bondThe chemical bond that forms between the carboxyl group of one amino acid and the amino group of another amino acid76
5093829478dipeptideTwo amino acids bonded together77
5093829479condensation reactionA reaction in which two molecules become covalently bonded to each other through the loss of a water78
5093829480hydrolysisBreaking down molecules by the chemical addition of water79
5093829481primary structureThe specific sequence of amino acids making up a polypeptide chain.80
5093829482secondary structurelevel of protein structure consisting of beta pleated sheets and alpha helices. Caused by Ionic and Hydrogen bonding between adjacent amino acids81
5093829483tertiary structure3D shape of single polypeptide using hydrogen bonding, ioning bonding and disulfide bridges82
5093829484quaternary structureThe shape resulting from the association of two or more polypeptide subunits.83
5093829485NonCompetitive Inhibition (Allosteirc)When a molecule blocks an enzyme action by binding to a site other than the active site84
5093829486PhospholipidOne phosphate replaces a fatty acid to make a polar end to the molecule85
5093829487Lactaseenzyme necessary to break down lactose86
5093829488Phosphodiester bondthe bond between the phosphate of one nucleotide and the Sugar of another87
5093829489Specific HeatThe amount of heat required to raise the temp of 1 gram of water(l) by 1 degree Celsius88
5093829490Allosteric Inhibition89
5093829491Competitive inhibition90
5093829492Surface Tensionon the surface of water, the result of Hydrogen bonding91
5093829493Capillary actionthe result of adhesion and cohesion, it is the rising of water in a thin tube.92
5093829494Sulfhydryl groupthis functional group is found in amino acids they form disulfide bridges in proteins93
5093829495Destroy Hydrogen and Ionic bondsHow can pH damage Enzyme Structure94

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