Answer to Question #150160 in Cell Biology for Emily Neugebaur

Question #150160
describe the changes a molecule undergoes when it absorbs a quantum of light
1
Expert's answer
2020-12-11T08:18:56-0500

If a quantum of visible or ultraviolet light is absorbed, then an electron in a relatively low energy state of the molecule is excited into a higher energy state. If infrared radiation is absorbed by a molecule, then the excitation energy affects the motions of the nuclei in the molecule. After the initial absorption of a quantum of energy, the excited molecule can undergo a number of primary photochemical processes.


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