4- Enzymes-Protein Catalysts_Review Sheet

4- Enzymes-Protein Catalysts_Review Sheet - Enzymes-Protein

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Enzymes-Protein Catalysts-Exercise 4 Review Sheet Electromagnetic radiation What is electromagnetic radiation? Electromagnet radiation travels through space in wavelengths of less than one nanometer to more than 1 kilometer. What is wavelength ( λ )? How is this concept related to color? The distance from the crest of one wave to the crest of another is a wavelength. White light is made up of all of the wavelengths in the visible spectrum. When the white light is diffracted it separates into different wavelengths in the visible spectrum. Wavelength is directly related to color. What is amplitude? What does this have to do with light intensity? The height of the wavelength is the amplitude. Light intensity is proportional to amplitude. How are wavelength and amplitude related? What do they have to do with electromagnetic radiation? What is visible light? The portion of light the human eye can detect. What does it mean when we say that light is diffracted? Light gets bent or diffracted and the changes wavelengths. What is the difference between transmitted and reflected light? Transmitted light is absorbed while reflected light bounces back to the eyes. How is this concept related to the colors that your eyes see? The reflected light is the light that the human eye can detect but the transmitted light is absorbed so the human will not see that color. Spectrophotometers What is a spectrophotometer? How does it work? The spectrophotometer makes it possible to select specific wavelengths, or colors. The light is then sent through a substance and the spectrophotometer can read the transmittance and absorption that the substance had. What a lot of light is absorbed by a solution will the absorbance reading go up or down?
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This note was uploaded on 06/28/2008 for the course BIOL 111 taught by Professor Rizzo during the Spring '07 term at Texas A&M.

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4- Enzymes-Protein Catalysts_Review Sheet - Enzymes-Protein

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