Chapter 6- Chemisty of Life Flashcards Preview

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Flashcards in Chapter 6- Chemisty of Life Deck (27):
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atom

smallest particle of an element that has characteristics of that element

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acid

any substance that forms hydrogen ions in water

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base

any substance that forms hydroxide in water

3

compound

substance that is composed of atoms of 2 or more different elements

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covalent bond

when 2 atoms share electrons

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element

everything

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ion

charged particle

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ionic bond

attractive force between 2 ions of opposite charge

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isotope

atoms of the same elect that have different number of neutrons

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metabolism

all of the chemical reactions that occur within an organism

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mixture

combination of substances in which the individual components retain their own properties

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molecule

group of atoms held together by covalent bonds

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pH

how acidic or basic a solution is

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solution

a mixture in which one or more substances are distributed evenly in another substance

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diffusion

movement of particles from an area of high to low

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dynamic equilibrium

result of diffusion where there is a continuous movement of particles but no overall change

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hydrogen bond

a attraction of opposite charges between hydrogen and oxygen

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polar molecule

a molecule with an unequal distribution of charge

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amino acid

basic building blocks of proteins

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carbohydrate

Carbon hydrogen and oxygen 2-1-1

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enzyme

protein that changes the rate of a chemical reaction

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isomer

compounds that have the same chemical formula but different 3D structures

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lipid

bio molecule made up of mostly carbon and hydrogen with little oxygen

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nuclecid acid

stores cellular information in the form of a code

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nucleotide

polymers made up of smaller subunits

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peptide bond

covalent bond formed between amino acids

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polymer

large molecule formed when many smaller molecules bond together