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25 Cards in this Set
- Front
- Back
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Smallest unit of matter
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Atom
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Substance made of only one kind of Atom
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Element
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A substance made up of joined atoms
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Compound
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Group of atoms held together by covalent bonds
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molecule
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an atom/molecule that has lost one or two more electrons
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ion
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Attraction between substances of the same kind
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cohesion
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An attraction between different substances
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Adhesion
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A mixture where substance are evenly distributed
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solution
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Compounds that form hydrogen ions in the solution is increased
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acids
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Concentration of Hydrogen ions in a solution
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bases
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Organic compound made of carbon,hydrogen, and oxygen atoms in the proportion of 1:2:1
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Carbohydrate
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The building blocks of carbohydrates
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Monosaccharides
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fats, phospholipids, steroids, and waxes.
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Lipids
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A chain of amino acids linked together
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protein
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The building blocks of proteins
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amino acids
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a chain of nucleotides
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nucliec acid
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makes up nucliec acids
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nucleotide
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Two strands of nucleotides held together in a spiral fomation by hydrogen bonds
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DNA
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Manufacturer of proteins
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RNA
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Energy storer in cells
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ATP
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The ability to move or change matter
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Energy
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The enegry needed to start a chemical reaction
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Activation energy
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Substance that increases the speed of chemical reactions
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Enzymes
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A substance that is acted on by an enzyme
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substrate
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Pocket for substrates
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active site
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