Biology 1001A Lecture Notes - Lecture 1: Simple Eye In Invertebrates, Dna Replication, Pigment
6 Jun 2020
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Biol 1000 - fall 2018: light and life. Define/explain light, photon, pigment, photoreceptor, absorption spectrum, dna, eyespot, eye [knowledge] : electromagnetic radiation, wavelength of terms key: electromagnetic radiation produced by oscillating electric and magnetic disturbance, or by the particles travelling through a vacuum or matter. Ex. radio waves, microwaves, x-rays, gamma rays and sunlight: wavelength of light: is the minimum size of a particle you can observe. A particle is observed when light is reflected off it. Hence, you cannot observe any object that is smaller than the wavelength of light. Ranges from 400 - 700nm: photon: A photon carries energy proportional to the radiation frequency but has zero rest mass: pigment: A molecule that can absorb photons of light. The natural colouring matter of an animal or plant tissue: photoreceptor: sensory cell that responds to light falling on it.
