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Reading_Transport

Reading_Transport - Transport of Nutrients by Microbial...

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Transport of Nutrients by Microbial Cells In the lecture we will talk about some of the experimental evidence for transporters and what are the advantages of having so many different types of transporters. Textbook Reading Page 133-138, “Uptake of Nutrients into Cells” What you should get out of this text: 1. Understand why energy-dependent transport of nutrients into cells is necessary to support growth of most bacteria. (Why would a transporter be needed even for a nutrient that could passively diffuse across the membrane?) 2. Be familiar with facilitated diffusion. 3. What is the function of energy in transport systems? 4. Know that ABC transporters are comprised of a solute-binding protein, a transmembrane protein, and an ATPase. 5. Know the location of the solute-binding protein in Gram-negative versus Gram-positive bacteria. 6. Be able to explain what can be the energy sources for the secondary transporters (uniporter, symporter, and antiporter).
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