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Chapter 6 Def.

Bio/Chemistry

TermDefinition
Acid Any substance forms hydrogen ions in water.
Atom Smallest particle of an element that has the characteristics of that element.
Base Any substance that forms hydroxide ions in water.
Compound A substance that is composed of atoms of two or more different elements that are chemically combined.
Covalent Bond When two atoms together.
Element Substances
Ion Charged particle made of atoms.
Ionic Bond The attractive force between two ions of opposite charge.
Isotape Atoms of the same element that have different numbers of neutrons.
Metabolism All of the chemical reactions that occur within an organism are referred to as that.
Mixture Combination of substances in which the individual components retain their own property.
Molecule A group of atoms held together by covalent bonds.
Nucleus The center of the atom.
pH A measure of how acidic or basic a solution is.
Solution A mixture in which one or more substances are distributed ecenly in another substance.
Diffusion Is the net movement of particles from an area of high concentration to low concentration.
Dynamic Equilibrium The result of diffusion where there is continuous movement of particles but no overall change in concentration.
Hydrogen Bond An attraction of opposite charges between hydrogen and oxygen forms a weak bond.
Polar Molecule A molecule with an unequal distribution of charge.
Amino Acid Basic building blocks of proteins.
Carbohydrate Biomolecule composed of carbon, hydrogen, and oxygen with a ratio of about two hydrogen atoms and one oxygen atom for every carbon atom.
Enzyme A protein that changes the rate of a chemical reaction.
Isomer Compounds that have the same chemical formula but different three demensional structures.
Lipid Large biomolecules that are made mostly of carbon and hydrogen with a small amount of oxygen.
Nucleic Acid A complex biomolecule that stores cellular information in the form of a code.
Nucleotide Smaller subunits of nucleic acids.
Peptide Bond The covalent bond formed between the amino acids.
Polymer A large molecule formed when many smaller molecules bond together.
Protein A large, complex polymer composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
Created by: LoganBender
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