"Official" 2014 USABO thread

<p>Did anyone get trolled by the 1,3-Bisphosphoglycerate causing increased hemoglobin unloading?</p>

<p>I put false. 2,3-Bisphosphoglycerate causes Bohr shift, not 1,3-BPG</p>

<p>Bobby, graduating means they don’t take the exam.</p>

<p>but, i am a senior.</p>

<p>no, they were seniors last year so they’re out of the running</p>

<p>I think what spazzer means to say is that by 3 Gold medalists graduating last year, the cutoff will be lower. </p>

<p>I don’t think so because they definitely are not at cutoff.</p>

<p>yes but it just means more spots for people with lowers scores. </p>

<p>Disaccharide, what grade are you in and did you make camp last year?</p>

<p>@Disaccharide‌ 1,3-Bisphosphoglycerate is a precursor to the 2,3-Bisphosphoglycerate so it would result in the same effect so you still got it right :slight_smile: </p>

<p>What the frick was it really 1,3 BPG?</p>

<p>@ScreenyName‌ So you believe false is the right answer?
@Shaver5‌ soph and no camp.</p>

<p>i put true… yay? i think? </p>

<p>bastards</p>

<p>@ChessNBio I thought it was NOT 1,3 BPG. Wikipedia confirms.</p>

<p>wait what’s this bpg problem
and who here made camp last year?</p>

<p>Similarly, right shift shows decreased affinity, as would appear with an increase in body temperature, hydrogen ion, 2,3-diphosphoglycerate (also known as bisphosphoglycerate) or carbon dioxide concentration</p>

<p>Quoted from wiki
not 1,3 BPG; thats from glycolysis and needs to be converted to 2, 3</p>

<p>Wikipedia says “Low oxygen levels trigger a rise in 1,3BPG levels which in turn raises the level of 2,3BPG which alters the efficiency of oxygen dissociation from hemoglobin.”
So yeah but then again wikipedia isn’t the most reliable </p>

<p>O.o where did you guys learn something as obscure as that?</p>

<p>But 1,3 is not the one that actually causes Bohr shift.
I knew this problem would be controversial</p>

<p>oh that question
i was pretty sure it was false</p>

<p>I put false</p>