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March 2017, Week 3

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Subject:
FW: Hi, here's your MCAT Question of the Day!
From:
Kemile A Jackson <[log in to unmask]>
Date:
Thu, 16 Mar 2017 14:09:06 +0000
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[MCAT Question of the Day, Click Display Images To See]





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Mechanism of Cyanide



The lethal poison cyanide causes death by interfering with cellular respiration. What is cyanide’s mechanism of toxicity?



A. Cyanide blocks the passage of electrons from cytochrome oxidase a3 to oxygen.



B. Cyanide inhibits the binding of ATP to ATP synthase.



C. Cyanide covalently binds to coenzyme Q (ubiquinone).



D. Cyanide breaks down the proton gradient across the inner mitochondrial membrane.



To see the solution, visit the following link:

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MCAT Question of the Day · 505 SW 2ND AVE · GAINESVILLE, FL 32608 · USA

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