BI110 Chapter Notes - Chapter 1: Opsin, Planaria, Organism
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Peerwise: http://peerwise. cs. auckland. ac. nz: course id:5577, use your wlu id# as your identifier. Role of light in ecology and behavior. Chlamydomonas reinhardtii is a very common form of single-celled green alga. It is an excellent example of an organism that uses light as a form of energy and information. Each cell has a huge chloroplast to process light and signal to the flagella to move to an optimal position for light absorption. Earth has the optimal distance from the sun allowing proper light absorption. Moves in the form of two waves, one electrical and on magnetic, which are oriented at 90 degrees to each other. Many of the wavelengths are reflected, some do not reach the earth. Purple and blue) and longer wave length is less energy (ex. Light is the electromagnetic radiation that humans can detect with their eyes. It is a wave of discrete particles called photons. To be used, light energy must be absorbed by molecules called pigments.
