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10 Organisms Sense their Environment3 categories of Receptors and FunctionoMechanoreceptorsTouch Hearing (special sense)Balance (special sense)oChemoreceptorsTaste (special sense)Smell (special sense)pHoElectromagnetic receptorsVision (special sense)Conveying sensory information oStimulationoTransduction-energy is converted oTransition-potentials are translated to action potentialsoInterpretation-brain forms perception of stimulusSensory Transduction and TransmissionoReceptor receives info from the stimulus its sensitive to.oReceptor potential is gated-larger stimulus larger the depolarizationoStimulus gated ion channelsoIf threshold is reached the action potential will be formedoLarge stimulus produces a large receptor potential which results in frequent action potentialMechanoreceptorsoNociceptorsPain-receptors detect tissue damage are stimulatedNoxious substances and tissue damage