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25 Cards in this Set

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Acid?
A solution with a higher concentration of hydrogen ions than hydroxide ions; solutions with a pH below 7.
Activation Energy?
Minimum amount of energy needed to initiate a chemical reaction.
Amino Acid?
Simple compound that is the building block of proteins.
Base?
Solutions with a higher concentration of hydroxide ions than hydrogen ions; solutions with a pH above 7.
Carbohydrate?
Organic compound containing carbon, hydrogen, and oxygen; provide sources of energy for life processes.
Chemical Formula?
A group of symbols showing the number and kind of each atom in a compound.
Coenzyme?
Nonprotein, reusable helper molecule that helps enzymes activate chemical reactions.
Compound?
Substance with two or more atoms of different elements combined chemically.
Covalent Bond?
Occurs when atoms combine by sharing electrons.
Electron Cloud?
Space that electrons occupy while moving around the nucleus.
Element?
Substance composed of only one type of atom.
Energy Level?
Any of several different regions in which electrons travel around the nucleus.
Enzyme?
Reusable protein that lowers the required activation energy and allows reactions to happen at the normal temperatures of cells.
Ion?
A charged atom resulting from an atoms loss or gain of one or more negative charges.
Ionic Bond?
Force of attraction between ions.
Isomers?
Organic molecules with the same chemical formula but different structural formula.
Kinetic Energy?
The energy of motion.
Lipid?
Fats, oils and waxes.
Molecule?
Combination of two or more atoms joined by a covalent bond.
Nucleic Acid?
Biological compound that forms a code to determine a living thing's appearance and behavior.
Polypeptide?
Many amino acids bonded together.
Polysaccharide?
The most complex carbohydrate which is formed by long chains of monosaccharides.
Potential Energy?
Stored energy or energy of position.
Protein?
Organic molecules used to build living material, carry out chemical reactions, fight disease, or transport particles out of cells.
Solution?
A mixture of different substances in which every part of the mixture is the same.