Biology 1202B Lecture Notes - Lecture 6: Photosynthetic Reaction Centre, Atp Synthase, Plastoquinone
10 May 2016
School
Department
Course
Professor
Document Summary
Electromagnetic energy is given off by the sun due to the fusion of hydrogen. The distance between the crests of the waves determines type. Wavelength inversely correlates with energy (e. g. shorter waves have higher energy; longer waves have lower energy) The portion of the electromagnetic spectrum that humans can see. Act like particles in motion - they have a fixed quantity of energy. 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. Excites an electron raising the energy level. To be used as a source of energy it must be absorbed. A specific wavelength can excite the electron. Pigment molecules are very efficient at absorbing photons because its structure determines its function. Due to bonding arrangement of carbon atoms. Electrons are delocalized and available to interact with a photon of light. Pigments differ in the wavelengths they absorb.
