BIOL 1000 Lecture Notes - Lecture 4: Dichromacy, Trichromacy, Dna Replication

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12 Nov 2016
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In form of wave lengths: light is imposed of photons, light is reflected from objects = where colour comes from. 1. reflected off the object: transmitted through the object, absorbed by the object, photons come in and going to interact with the electron, not everyone photon will be able to move the electron. How is light captured: need to look at a group called molecules of pigments, every single pigment allows to absorb the light at different wave lengths and reflecting different wave lengths we get all these different colours. Conjugated system: region of alternating single and double bonds, general may lower the overall energy of the molecule and increase stability. Conformational change: change of molecular structure, retinal pigments in our eyes that allow us to see, when the photon is absorbed you have the cis structure which turns into a trans structure.

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