Basic unit of matter
The center of the atom which contains the protons and neutrons; in cells, structure that contains the cells genetic material (DNA) and controls the cell's activities.
Negatively charged particlellocated outside the atomic nucleus.
Sunstance consisting entirely of one type of atom
atom of an element that has a number of neutrons differant from that of other atoms of the same element.
Substance formed by the chemical combination of two or more elements in definite proportions.
Bond formed when one or more electrons are transferred from one atom to another.
Atom that has a positive or negative charge.
Bond formed by the sharing of electrons between atoms.
Smallest unit of most compounds.
Van der waals forces
A slight attraction that developes between the oppositely charged regions of nearby molecules.
Attraction between molecules of the same sunstance.
Attraction between molecules of differant differant substances; in plants,, attraction between unlike molecules
Material composed of two or more elements or compounds that are physically mixed togather but not chemically combined.
Mixture of two or more substances in which the molecules or the substances are evanl distributed.
Substances that Is dissolved to form a solution.
Sunstances in which a solute is dissolved to form a solution.
Mixture of water and nondissolved material.
Measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14.
Compound that forms hydrogen ions (H+) in solution.
Compound that produces hydroxide ions (OH+) in solution.
Weak acid or base that can react with stron acids or bases to help prevent sharp, sudden changes in Ph.
Small unit that can join togsther with other units to form polymers.
Large compund formed from combinations of many monomers.
Compounds made up of carbon, hydrogen, and oxygen atoms; major sources of energy for the human body.
single sugar molecule.
Large macromolecule formed from monosaccharides.
Macromolecule made mainly for carbon ang hydrogen atoms; including fats oils and waxes.
Macromolecule containing hydrogen, oxygen, nitrogen, carbon, and phosphorus.
Monomer of nucleic acids made up of a 5-carbon sugar, a phosophate group, and a nitrogenous base.
Single-stranded nucleic acid that contains sugar ribose.
Deoxyribonucleic Acid (DNA)
Nucleic acid that contains the sugar deoxyribose.
Macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair and to make up enzymes.
Compound with amino group on one end and a carboxyl group on the other end.
Proces that changes one set of chemicals into another set of chemicals.
Element or compound that enters into a chemical reaction.
Element or compound produced by achemical reaction.
Energy needed to get a reaction started.
Substance that speeds up the rate of a chemical reaction.
Protein that acts as a biological catalyst
Reactant of an enzyme-catalyze dreaction.