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Biochemistry Flashcards

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7451808767ElementSubstance that CAN'T be broken down by chemical reactions (atom)0
7451822142Compound2 or more different elements combined in a fixed ratio1
7451855655Structure of atomsProtons Electrons Neutrons2
7451859048Atomic numberHow many protons3
7451861431Atomic massTotal number of protons and neutrons in nucleus of atom4
7451879252Covalent Polar BondElectrons of the bonds are not shared equally5
7451885617Covalent Non-Polar BondShare electron equally Two atoms have the same electronegativity6
7451893418Ionic BondBinding of opposite charged ions together7
7451900746Hydrogen BondCarries a partial charge and an electronegative atom8
7451929698Van Der Waals ForcePositive and negative region of molecules9
7451941074CohesionHydrogen bonds hold water molecules together10
7451999884AdhesionAttraction between different substances11
7452002770Surface TensionHow hard it is to break the surface of a liquid12
7452029045Moderating TempsWater has a high heat capacity. Large bodies of water can absorb large amounts of heat with only small changes in temp.13
7452037535Versatile SolventWater polarity allows it to dissolve ionic compounds and other molecules14
7452045927Carbon"Backbone of life" Gives it shape15
7452110900Dehydration Synthesis2 monomers bond together through the loss of a water molecule16
7452117035CarbohydratesServe as fuel & building material Includes sugars17
7452121307Lipids**Hydrophobic DON'T form polymers Nonpolar Bond Consists of hydrocarbons18
7452129391ProteinsSpeed up chemical reactions- enzymes Protect against disease, support, movement, storage of amino acids19
7472246623Why do most polar covalent bonds involve nitrogen or oxygen?Oxygen has a partially negative charge20
7472256442How/ Why do ions form? How do ionic bonds form?Ionic bonds form when one atom takes all of the electrons To fill a valence shell21
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