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Published byClinton Johnston Modified over 9 years ago
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Education Pays
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What do you want to be when you grow up? n Many possibilities to use your biological education. u Biologist u Life Scientist u Doctor/Nurse u BioEngineer u Chemical Engineer YOUR DECISION HAS $$$ CONSEQUENCES!
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Job Growth n Growth rate is ~35%/yr
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Salary Information n Median Salary for B.S. =$35k/yr n Starting Salary ~$24/yr-$30k/yr
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Catalase The Enzyme
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Using Enzymes in Industry
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Catalase n Liver Enzyme n Reaction u decomposition of peroxide n 2 H 2 O 2 ----> 2 H 2 O + O 2 (g) n Catalase acts as a catalyst u increases the rate of reaction
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Rate Plot
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Catalase Enzyme
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Catalase - Tetramer
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Catalase Active Site Heam Site
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Catalase Mechanism n 2 H 2 O 2 2 H 2 O + O 2 (g)
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Catalase Mechanism
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k 1 Fast!! k 2 Slow n k 1 = Enzyme-Substrate Association n k 1 Runs at 4x the Speed Limit, u Diffusion Limit F k1 = 4 x 10 8 Liter/(mole sec) n k 2 = Product Kickout from Active Site u Much Slower than the Speed Limit u Speed limit 10 10 1/sec F k 2 ~10 1/sec
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Rate Plot
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Hayes’ Data
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Catalase Mechanism
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Constant Determination
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Hayes’ Data
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Effect of Catalase Concentration
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Effect of Temperature
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Effect of pH
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To Do Biology, you need n Chemistry n Mathematics n Engineering!
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