<p>I’ll put in all I that I’m reasonably sure of being correct.</p>
<p>-Which of the following is false about NADH production of metabolic pathways - succinate thiokinase?</p>
<p>-Which amino acid is most likely to be found in a transmembrane region - tryptophan?</p>
<p>-Effects of cholera toxin - activation of GsubS protein, excessive cAMP production (anything else?)</p>
<p>-Genetic recombination - 25 map units</p>
<p>-Plant hormone that closes stomata - ABA [failed and put ethylene on this one :(]</p>
<p>-All stems are endarch; all roots were exarch (according to Wikipedia)</p>
<p>^about the effects of the cholera toxin, was there a choice involving all that u said plus another choice?</p>
<p>e.g. u chose 3,5</p>
<p>was there a choice involving 3,4,5 (this was just an example-- 4 is merely used as a random choice)</p>
<p>i remember something about calcium pumps… was it inhibition or stimulation?</p>
<p>I actually put “3, 4, 5”. There was a choice about efflux of calcium ions, but according to Wikipedia, Ca2+ isn’t involved; only sodium, potassium, chloride, and bicarbonate. Anyone?</p>
<p>so im guessing theres a choice for only 3 and 4? i dont think i remember that tho.</p>
<p>Tryptophan is most likely to be found in a transmembrane protein because it was the only one on the list that was nonpolar/uncharged (other than the COO- and NH2+, of course).</p>
<p>i forgot to read the scoring sheet for cholera toxin part, but how many points total was that part?</p>
<p>In Part C, I believe that the answer to DCMU was 2. It is true that it inhibits photosynthesis by messing with plastiquinone, but it does not affect the splitting of H20 into O2. Thus, the rate remains constant.
NH4Cl was that it creates acidic solution, therefore equilibrium goes against splitting of water. Answer is 4 because O2 is consumed by equilibrium (or plant if the experiment had living cells).</p>
<p>Very tricky question. Too bad Part C wasn’t worth that much.</p>
<p>wow, tanakeame, did you know all this before you took semis?
i don’t think this was even in raven</p>
<p>^^ if you mess with electron transport, then the whole thing stops. Even if you keep splitting water, it will just spontaneously reform if the electrons have nowhere to go.</p>
<p>I think I’m just going to take it easy till I get results. No use freaking out… (hopefully before the 15th…)</p>
<p><em>checks website</em> dammit, I could have sworn they were releasing the 15th. Nvm, the 30th then.</p>
<p>^maybe cause thats around the time finals people were notified last year.</p>
<p>It’s probably delayed due to the two-week open delay.</p>
<p>Darn delay! I want my results back! <em>goes off to pout in corner like a six year-old</em></p>
<p>So I attended a presentation about genetically modified organisms today. Pretty depressing stuff. What does everyone think about that?</p>
<p>good in theory. It’s just that the companies putting it into practice (namely monsanto) are evil.</p>
<p>edit: post number 300, I am now a member</p>
<p>You do realize that a certain school coughcoughstuyvesantcoughcough did not administer the exam until the 8th of April? and everyone’s here discussing questions ><</p>
<p>When do results come out? </p>
<p>The thing about cholera was not in Campbell. I read the receptors thoroughly cuz I got screwed on the open for that q. That answer was in Alberts.</p>
<p>^thats not allowed. They had to mail it on April 2.</p>
<p>^^ In seventh edition they definitely mentioned it in passing in the chapter about cell communication - how it permanently activated a G protein. If you knew about signaling pathways then you could have deduced the high cAMP as well.</p>
<p>Sty can’t do that. Plus, I don’t think they would. They historically have had a very large number of finalists and they wouldn’t jeopordize their chances on a technicality.</p>
<p>@ GMOs: Good idea, but waaay more testing is needed before we can really embrace it on a large scale. & no, Monsanto isn’t evil, it’s just a corporation. That’s what corporations do.</p>