BI110 Lecture Notes - Lecture 2: Cellular Respiration, Simple Eye In Invertebrates, Opsin
Document Summary
Matter is getting convertered into electromagnetic radiation which is the ultimate source of energy on earth. All these forms of energy can be interconverted. Wavelengths = from one peak to another peak. Amount of energy is inversely proportionate: short wavelength = high energy, long wavelengths = low energy. Definition of light: electromagnetic radiation that humans can detect with their eyes (so if we can see it, its light) Also a wave of discrete particles called photons. The energy of that photon must be absorbed by a molecule called pigments (since molecules are a form of matter) that is how energy is sued by an organism. When light interacts with any kind of matter it has 3 possible fates: reflected by object -> how we see colour, whatever is reflected, transmitted through object, absorbed. Don"t need to know the structure but should be able to recognize it and talk about it.
