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FCSDBio-Fin Rev31-44

Regents Bio Final Review Vocabulary 31-44

TermDefinition
stimulus a change in the envoronment that causes a response
neuron a nerve cell
impulse the electrical signal carried by the nerves
hormone chemical signal secreted by different glands in the body
receptor molecules proteins on the surface of the cell membrane that receive signals from the nervous and endocrine system
organic compounds have carbon AND hydrogen
carbohydrates sugars and starches; made from simple sugars and supply energy
lipids include fats, oils and waxes; made from fatty acids and glycerol; store energy
proteins made from amino acids; make hormones and many body and cell structures
enzymes catalysts that affect the rates of chemical changes
pH scale measures the strengths of acids and bases
cells basic unit of life; all living things (except viruses) are made of these
cell theory
plants
animals
Created by: fcsdklw
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