Cell bio hw 3 - Cell Biology(BIO 320 Spring 2009 Dr Bushart Homework 3 for quiz 2 1 Co-transporters and anti-porters have very strict transitional

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Cell Biology (BIO 320), Spring 2009, Dr. Bushart Homework 3 for quiz 2 1. Co-transporters and anti-porters have very strict transitional requirements; they should only “flip” to open to the other side of the membrane when both transported solutes are bound. How would the outcomes of these transporters change if they could alter shape when only one of the solute types was bound? This would have a rather dramatic impact. The driving molecule could simply dissipate down its electrochemical gradient without taking the other solute with it. It’s possible that the other situation could occur as well, that the solute being actively transported against its gradient would instead leak back down its own electrochemical gradient. In effect the transporter would become passive rather than active. 2. Do you think adding ouabain to Gatorade would make it more or less effective at counteracting dehydration due to diarrhea? Explain your choice (I feel you could defend either choice so the explanation is the important part). If we consider simply the effect of ouabain on ion balance, it should increase the uptake
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This note was uploaded on 02/28/2009 for the course BIO 50120 taught by Professor Bushart during the Spring '09 term at University of Texas at Austin.

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Cell bio hw 3 - Cell Biology(BIO 320 Spring 2009 Dr Bushart Homework 3 for quiz 2 1 Co-transporters and anti-porters have very strict transitional

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