<p>
Are you sure? I know someone who made Finals last-year, personally, and she did good but not great on the Open. Still made it. I’m pretyyy sure there’s just a Semis cut-off.</p>
<p>^And see the thing is, you should also get credit for knowing that something was the wrong answer, if that makes any sense?</p>
<p>For one of those endocrine questions, did you get GLUCAGON & INSULIN for glycogenolysis and glycogenesis (not sure if it was gluconeogenesis tho… >_<)</p>
<p>Phew… made semis! I thought I failed for sure after taking the open, but apparently it was hard for everyone.</p>
<p>But I am still not liking a lot of things:
<p>I, for one, did not know that I could bubble in multiple answers for each problem until more than 25 minutes into the test. Our proctor never mentioned anything about this. Also, the instructions never mention how the multiple answers will be graded. Everyone is my school assumed that it simply graded on all-or-nothing basis.</p>
<p>If a question had more than one answers, and someone bubbled in all the correct ones only, do you get more than one point for that problem? If this is not true, than “pick ALL” questions would be actually much easier than normal questions. If not, then… our scores are actually not out of 50.</p>
<p>2) Why did they make the test harder when it was hard enough?</p>
<p>Sure, hard tests really challenge the students, and some may consider this as a good thing. However, I disagree. This may be true for free-response style tests, a difficult multiple-choice test may actually award people who guess more. Let’s assume for now that the test was actually all single-answer multiple choice (this argument still holds, as they were much more single-answer questions). If student A knows answer to just 14 questions, he/she can blindly guess on all other 36 questions and get 36/5~7 questions right. Most other olympiads have cutoffs at least about 1/2 of the questions… and for a good reason.</p>
<p>And I have a question of my own…
-I made into semis, but I still haven’t received by permanent residence (green cards) yet. Does CEE check those information if by some chance I made into finals?</p>
<p>
That has never been the case in previous years and so will probably not be the case this year, either.</p>
<p>
If “glycogenesis,” then yes.
If “gluconeogenesis,” then just GLUCAGON.</p>
<p>I’ve never heard of the open scores carrying over. From all my experiences with usabo I’ve noticed tgat they want you to have a clean slate after you’ve reached the cutpoint (to the point where thay don’t even want psychological factors playing in, for example they didn’t release the exact semi numbers last year)</p>
<p>On the question mentioned above the two words were “glycogenesis” and “glycogenolysis”. Also what is used to develop a phylogenic tree?</p>
<p>Shared traits between species, I think.</p>
<p>Oh yeah and also what is required by a phototropic organism?</p>
<p>metabolites?
energy supplied by photosynthesis?
melanin?
photoactivated mitochondria?
rhodopsin?</p>
<p>Energy supplied by photosynthesis? I’ve never heard the term phototropic…“lives on light” is its approximate translation though. I am assuming that it cannot ingest food.</p>
<p>phototropic means that it has directional growth towards light…</p>
<p>not that is needs to have the energy supplied by photosynthesis cuz there are phototropic fungi rite? O_O</p>
<p>I’m pretty sure the phylogenetic tree question was similarities between mitochondrial DNA/proteins</p>
<p>And phototropic organism was metabolites.</p>
<p>Ok, I officially fail at non-MCB bio topics. :o</p>
<p>it was ONLY mitochondrial DNA/proteins? I thought it was all of the above.</p>
<p>
For anyone who does not believe me about your Open score being factored into your overall Semis score, feel free to take a look at post 225 on last year’s discussion here: <a href=“http://talk.collegeconfidential.com/high-school-life/590608-college-discussions-unofficial-usabo-2009-thread-15.html[/url]”>http://talk.collegeconfidential.com/high-school-life/590608-college-discussions-unofficial-usabo-2009-thread-15.html</a></p>
<p>Did anyone figure that question with answer choices of membrane potential, sodium potential or potassium potential?</p>
<p>I believe that the answer is sodium potential using the nernst equation?</p>
<p>plz verify…</p>
<p>I asked my teacher. Taken directly from the website.</p>
<p>
</p>
<p>Ok.</p>
<p>^mjin
Do you remember what numbers the question gave? I put sodium potential, too, but with much uncertainty.</p>
<p>The intracellular/extracelullar concentration of sodium was 14 mM/140mM while potassium was 120mM/4mM.
The question asked for _______ equals +58 mV at 25 degrees celcius</p>