BIOA01H3 Chapter Notes - Chapter 1: Photochemistry, Melanocyte, Light Pollution
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BIOA01H3 Full Course Notes
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Notes biology chapter 1 light and life. Also it contains light sensor called eyespot that allows it to sense light direction and light intensity. Wavelength of electromagnetic radiation ranges from one picometre(10-12m) to a kilometer (106m) for cosmic rays and radio waves respectively light is the range of the electromagnetic spectrum that humans can detect with their eyes. Wavelength outside this range is not considered as light but ultraviolet and infrared radiation. Photons have no mass but have a specific, precise amount of energy which is inversely related light can be described as a wave, behaves as a stream of energy particles called photons to its wavelength. A shorter wavelength consists of photons that have higher energy than longer wavelength (e. g. blue vs. red) 1. 1b light interacts with matter light has no mass but is able to interact with and change matter these changes allow light to be used by living things.
