USABO 2010 - Discuss

<p>^No. Go google cerebellum.</p>

<p>So what is the correct answer there? I totally forget the others.</p>

<p>no one answered my question >_></p>

<p>what question?</p>

<p>what was the wording of the question/answer choices. i forgot that one.</p>

<p>It was the question about determining the half-life. I believe I got something like 17,160 years? Or is that completely wrong…</p>

<p>but it was 2 mg… not 1 mg…</p>

<p>@ CNS question: I put cerebellum, but I think that the function it said was like “muscle movement” but its motor coordination.</p>

<p>@ Half life: It was 3 half lives, so like 17000 yrs.</p>

<p>How many mg did it start with? how many mg did it end up with?</p>

<p>Well, how about we try to find answers sequentially. I’m gonna start w/ the first one.</p>

<ol>
<li>Which of the following is true about amino acid and nucleic acid polymers?
Two answers? Built from existing templates, and something else that was obvious</li>
</ol>

<p>I think it was just E for the first one. The other answer i picked (something about lysed by tripsin) was wrong.</p>

<p>lol why would you pick “lysed by trypsin”.
thats unfortunate.</p>

<p>does anyone remember the membrane potential one?</p>

<p>I think it gave the wrong faraday constant, so I got none of the potentials to match the choices, so i picked “membrane potential”. I think it might have been Sodium potential, if the right faraday constant was used.</p>

<p>XR - I think I put potassium potential (not saying that was correct though).</p>

<p>I agree that the first question was E.</p>

<p>Hmm for the first question I got two answers E and something else about nitrogen.</p>

<p>how many questions were multiple answer? if it did not say choose “all”, then i only chose one answer. even my biology teacher thought this test was tough :-)</p>

<p>Hey, there are two answers in the 1st question. How do we know if we need to bubble both of them when they don’t mention it?</p>

<p>They specifically tell you to choose ALL that are correct. Otherwise you’d just pick the best one.</p>

<p>hmm…I put that both things on number one have preexisting templates and contain nitrogen…?</p>

<p>Srry if this seems dumb but on the problem about the treehouse what is the answer? (asked about height of tree house after a period of time)</p>

<p>lol thats a classic question on nearly every bio test about plants.
the treehouse doesnt move</p>