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AP bio test 1 Flashcards

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4785220327DNAgenetic material0
4785220328genesunits of inheritance; encode the information necessary to build all the molecules synthesized within a cell; determines identity and function1
4785225116genomeentire library of genetic instructions that an organism inherits2
4785258390matteranything that takes up space and has mass3
4785258391elementsubstance that cannot be broken down to other substances4
4785259800compoundsubstance consisting of two or more different elements combined in a fixed ratio5
4785267577O, C, H, NWhat four elements make up 96% of all matter (abbreviate elements)6
4785271124essential (elements)organism's needs to live a healthy life and reproduce7
4785277096energycapacity to cause change8
4785278934radioactive isotopenucleus decays spontaneously giving off particles of energy9
4785279988potential energyenergy that matter possesses because of its location or structure10
4785281967chemicalDistribution of electrons in the atom's electron shells (valence electrons) determines ___________________ behavior of an atom11
4785284560H-HWhat is the structural formula of Hydrogen12
4785285660O=OWhat is the structural formula of Oxygen13
4785286528H-O-HWhat is the structural formula of Water14
4785291073nonpolar covalent (because it is the same element & the electronegativity is the same so the electrons are shared equally)What type of bond is O215
4785293592electronegativityatoms in a molecule attract shared electrons to varying degrees (depending on element); attraction of a particular atom for the electrons of a covalent bond16
4785306256nonpolar covalent (bond)TYPE OF BOND: between two atoms of the same element; electrons are shared equally because the two atoms have the same electronegativity17
4785309483polar covalent (bond)TYPE OF BOND: an atom is bonded to a more electronegative atom; the electrons of the bond are not shared equally18
4785312231ionic (bond)TYPE OF BOND: two atoms are so unequal in their attraction for valence electrons that the more electronegative atoms strips an electron completely away from its atom19
4785337924hydrogen (bond)TYPE OF BOND: non-covalent attraction between a hydrogen and an electronegative atom20
4785340077covalentWhat is the strongest bond21
4785342159dynamic equillibriuma state of balance between continuing processes.22
4785349778polar moleculeunequal sharing of electrons23
4785351656cohesionhydrogen bonds hold the substance together (water-water)24
4785351657adhesionclinging of one substance to another (water-roots of leaves)25
4785420415surface tensionmeasure of how hard it is to break the surface of a liquid (related to cohesion)26
4785353202caloriethe amount of heat it takes to raise the temperature of 1g of water by 1°C27
4785357202heat of vaporizationquantity of heat a liquid must absorb for 1g of it to be converted from the liquid to the gaseous state28
4785362301solventdissolving agent29
4785362900solutionliquid that is completely homogenous (mixture of two or more substances)30
4785372817solutesubstance that is dissolved31
4785374592polarityWater is such a fine solvent because of its _________________.32
4785375357hydrophiliclikes water; ionic; polar; can form hydrogen bonds33
4785375966hydrophobicdislikes water; nonionic; nonpolar; cannot form hydrogen bonds34
4785378752H+ and OH-What two ions form when water dissociates35
4785379578acidsubstance that increases the hydrogen ion concentration of a solution36
4785379579basesubstance that reduces the hydrogen ion concentration of a solution37
47853860834how many bonds can carbon form38
4785391758hydrocarbonorganic molecules consisting of only hydrogen and carbon (Ex. butane, Butene, etc.)39
4785402204functional groupchemical groups that affect molecular function by being directly involved in chemical directions40
4785437757hydroxyl (group)41
4785438905carbonyl (group)42
4785453094carboxyl (group)43
4785453095amine (group)44
4785453796sulfhydryl (group)45
4785453797phosphate (group)46
4785453798methyl (group)47
4787460086proteins, lipids, carbs, nucleic acidsName the 4 large molecules of all living things48
4787463127Carbs, proteins, nucleic acidsName the 3 macromolecules49
4787464267macromoleculemade up of a very large number of atoms50
4787465343polymerlong molecule consisting of many similar or identical building blocks linked by covalent bonds51
4787467015monomersrepeating units that serve as the building blocks of a polymer; smaller molecules52
4787468109dehydrationReaction that forms fatty acids53
4787469977hydrolysisbond between monomers is broken by the addition of water54
4787473129hydrolysisLarge molecules (polymers) are converted to monomers in what type of reaction?55
4787475503monosaccharidesWhat are the monomers of all carbohydrates?56
4787477273carbonyl; hydroxylWhat are the 2 functional groups that all sugars have?57
4787478900ketoneKETONE VS ALDEHYDE: carbonyl is within the carbon skeleton58
4787480312aldehydeKETONE VS ALDEHYDE: carbonyl is at the end of carbon skeleton59
4787481141isomerssame molecular formulas but different structure60
4787492289glycogen; celluloseName the 2 categories of polysaccharides61
4787493495hydrophobicWhat characteristics do all lipids share62
4787499918glycerol; fatty acidsWhat are the 2 building blocks of fats?63
4787503678saturated (fats)Solid at room temperature; stack together; (Ex. lard; butter)64
4787507322unsaturated (fats)liquid at room temperature; double bonded; crooked; don't pack together; (Ex. plants; olive oil)65
4787522919energy storagemajor function of fats66
4787522920r groupside chain; differs with each amino acid; variable group67
478752452020How many different R groups are there?68
4787527090peptide (bond)TYPE OF BOND: a bond when two amino acids are positioned so that the carboxyl group of one is adjacent to the amino group of the other; become joined by a dehydration reaction with the removal of a water molecule69
4787532579primary (structure)WHAT STRUCTURE: sequence of amino acids70
4787533634secondary (structure)WHAT STRUCTURE: consists of coils and folds; alpha helices and beta pleated sheets71
4787536580tertiary (structure)WHAT STRUCTURE: r groups; covalent bond; ionic bond; hydrogen bond; hydrophobic amino acids72
4787537992quaternary (structure)WHAT STRUCTURE: multiple polypeptide chains73
4787540496denaturationloss of a protein's native structure; becomes inactive; unraveling of a structure74
4787560273atomsmallest units that retain the properties of a given element75
4787561548protonspositively charged subatomic particles within the nucleus76
4787563228trace elementchemical elements representing less than 0.01% of body weight77
4787567816neutronssubatomic particles within the nucleus carrying no charge78
4787569552electronssubatomic particles with a negative charge79
4787569553isotopeatoms of a given element that differ in the number of neutrons80
4787573567atomic numbernumber of protons within an atom81
4787573568mass numbernumber of protons and neutrons in the nucleus of one atom82
4787580118elementsfundamental forms of matter that occupy space, have mass, and cannot be broken down into something else83
4787584229tracera compound that has a radioisotope attached that is used to determine the pathway or destination of a substance84
4787602581mixturetwo or more elements that may combine in various proportions85
4787603635orbitalsregions of space around an atom's nucleus where electrons are likely to be at any one instant86
4787603636chemical bondunion between the electron structures of atoms87
4787603637compoundstypes of molecules composed of two or more different elements in proportions that never vary88
4787604555moleculeresults when two or more atoms bond together89
4787632791equationThe expression 12H2O + 6CO2 6O2 + C6H12O6 + H2O is known as the chemical ________________ for photosynthesis90
4787646314formulaH2O is the ______________ for water91
4787647559reactantsThe ______________ are to the left of the reaction arrow92
4787647560productsThe _____________ are to the right of the reaction arrow93
4787647561sixIn the expression, one can count six carbon atoms on the left side of the arrow, so one should be able to count _________ carbon atoms on the right side of the arrow.94
4787647562compoundSince water always consists of a ratio of two hydrogen atoms to one oxygen atom, it is called a ______________.95
4787647563mixturein a _____________, the components may vary in their proportions96
4787675141polarityThe _____________ of water molecules allows them to hydrogen-bond with each other97
4787675142hydrophilicWater molecules hydrogen-bond with polar molecules, which are ________________ substances98
4787675143hydrophobicPolarity causes water to repel oil and other nonpolar substances, which are _______________.99
4787675145hydrogenLiquid water changes its temperature more slowly than air because of the great amount of heat required to break the high number of ____________ bonds between water molecules100
4787676226iceBelow 0o C, water molecules become locked in the lattice like bonding pattern of _____________ which is less dense than water101
4787676227cohesionCollective hydrogen bonding creates a high tension on surface water molecules, resulting in _____________, the property of water that explains how long, narrow water columns rise to the tops of all trees102
4787676228solventWater is an excellent ______________, in which ions and polar molecules readily dissolve103
478771734710If neon has an atomic number of 10 and an atomic mass of 20, it has _________ neutrons.104
4787730484buffera control that minimizes unsuitable pH shifts is a ____________105
4787733126temperature_______________-stabilizing is a property of water that protects aquatic organisms during a long, cold winter106
4787744945antiparalleltwo sugar phosphate backbones that run in opposite 5-3 direction107
4787750917glucoseFormula for _____________ is C6 H12 O6108
4787752359ciswhen carbon is on the same level of a molecule109
4787752675transwhen carbon is placed diagonally in a molecule110
4787759042lipidsfunction of cell membrane; storage of energy; not truly a macromolecule because it doesn't follow a pattern111
4787762785simple sugarsWhat are the monomers of carbohydrates112
4787764033nothingWhat are the monomers of fatty acids?113
4787848653polypeptidesunbranched polymers from 20 amino acids114
4787855379acidACID OR BASE: loses the H115

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