Trichromatic theory may be defined as the theory that posses of three independent channels that are used to convey the color information. They are derived from the three different cone cells.
The television also produce three primary colors by the use of trichromatic theory. The receptor or these colors in human are greater than three as different colors have different intensity of light. The opsin protein plays an important role in the trichromatic vision.
1) To lower the activation energy needed to start a reaction - this is done through enzymes 2) Energy - this is done through storing sugar 3) Transportation - this is done through hemoglobin