The Trichromatic Receptor Theory Explains How Different Colour Receptors in the Eye

question 29

Multiple Choice

The trichromatic receptor theory explains how different colour receptors in the eye combine to produce colour vision.However,this theory does NOT explain:

• A)negative afterimages.
• B)how colour receptors respond differently to different colours.
• C)how many colour receptors the retina must use in order to produce colour vision.
• D)colour vision.

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Definitions:

Neuron

A cell of the nervous system that is specialized to transmit information throughout the body.

Resting Pause

A brief period of rest or inactivity, especially used in the context of physical exercise or mental relaxation.

Sodium/Potassium Pumps

Cellular mechanisms that move sodium and potassium ions across the cell membrane to maintain appropriate concentration levels inside and outside the cell.

Action Potential

A rapid, temporary reversal in the electrical polarization of the membrane of a nerve cell or muscle cell, enabling the transmission of signals.