Biology 1002B Lecture Notes - Lecture 2: Mechanistic Organic Photochemistry, Bioluminescence, Cell Membrane
16 Jan 2017
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They also have a cell wall, however, it is not essential. In research, we work with a mutant with no cell wall because it is easier to study certain sections of the chlamydomonas (cid:498)cell-less mutant(cid:499) Em spectrum, gamma (short) to radio waves (long) Think of light in terms of discrete packages of energy: quanta or photons- have no mass, but they do have energy. The energy of a photon is inversely related to its wavelength. Blue light = high energy (short wavelength) Red light = lower energy (long wavelength) Channelrhodopsin must have a pigment associated with it because it is a protein and therefore cannot absorb light. Delocalized electrons occur in conjugated right system the delocalized electrons are what interact with the photons of light, this only occurs in pigments (not proteins!) Pigments bind to the proteins, found in retina of the eye as well as the chloroplast. Most proteins do not have pigments associated with them.
