BIOL 1000 Lecture Notes - Lecture 1: Fluid Mosaic Model, Microfilament, Endergonic Reaction
1 Nov 2016
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Email: b1000lec@yorku. ca: lecture related information, used for all sections of this course. Light can be a source of energy and information: behaves in patterns of waves. Measured in nanometers (10^-9m: energy and wavelength are inversely related. Visible region of the electromagnetic spectrum that humans can detect with their eyes: 400-700 nm (blue-red) less than that is ultraviolet and more than that is near-infrared radiation longer the wavelength the less energy. Light interacts with matter by: reflecting off the object, absorbed by the object (most biologically relevant) transmitted through the object. Photon causes electron to become excited and then it enters high-energy level. Ultimately they go back to original energy state and that is when things. Light is captured by pigments happen: photosynthesis: chlorophyll, vision: retinal, all pigments shapes matter. Electrons capture photons/energy which can be used to do work: sun photosynthesis (captures) cellular respiration (releases) energy, bacterium use this ability as well. Halobacterium (example) uses atp-synthase to create energy.
