Biology 1201A Lecture Notes - Lecture 6: Chlorophyll, Htc, Chloroplast
12 Jan 2016
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Document Summary
Is given off by the sun due to the fusion of hydrogen. This energy travels in waves like waves in water. The distance between the crests of the waves determines type. The portion for the electromagnetic spectrum that humans can see, it is a very small portion of the spectrum. Photons energy particles of light energy. Act like particles in motion they have a fixed quantity of. The wavelength of light is inverse to the amount of energy. Violet light has more energy than red light. Light has no mass, but still interacts with matter. It might be reabsorbed by the object it excites an electron raising the energy level. To be used as a source of energy it must be absorbed. Molecules which are very efficient at absorbing photons. Due to bonding arrangement of carbon atoms. Electrons are delocalized and available to interact with a double bonds photon of light. Pigments differ in the wavelengths they absorb.
