BIOL 1000 Chapter Notes - Chapter 1 : Chlamydomonas Reinhardtii, Electromagnetic Spectrum, Chloroplast
Document Summary
Light has 2 important functions for life and earth: source of energy that directly or indirectly sustains virtually all organisms, provides organisms with the information about their surroundings. With this information, cells can move toward or away from the light source, allowing them to optimize light harvesting for photosynthesis. The portion of the electromagnetic spectrum that humans can detect with their eyes. Range of electromagnetic spectrum: the electromagnetic spectrum ranges from gamma rays to radio waves; visible light and the wavelength used for photosynthesis occupy only a narrow band of the spectrum (pg. Examples of wavelength: examples of wavelengths, showing the difference between the longest and the shortest wavelengths of visible light. (pg. 5) light has no mass light behaves as a wave as it travels through space. Photons being composed of a steam of energy particles this light has the properties of both a wave and a stream of photons: packet of energy with nor mass, absorbed by electrons.
