June 2012 SAT II Biology

<p>Hang on for vines, what do you mean by control slightly steeper? I got that the control was almost 2x the experimental by the end. The averages compared were like 25 and 15. </p>

<p>I thought tRNA was the option for protein and RNA… b/c it’s made up for RNA and it’s attached to a growing polypeptide, which is a protein. </p>

<p>If anyone has the 20 consolidated answers for E, that would be nice c:</p>

<p>What exactly was the byproduct water question?</p>

<p>^ The product of dehydration synthesis in the M section (there may have also been a similar question in the general).</p>

<p>Thanks for the summary! I hold that it’s a bell curve for the insect population. I’d love to hear a good argument for negative slope.</p>

<p>I keep on hearing mixed responses to whether E or M is typically harder .-. anyone know forsure?</p>

<p>E typically has the nicer curve because more capable students tend to take M. On this test, it seems that M was quite a bit easier.</p>

<p>Wait what was question 4?</p>

<p>Question 4 was like what allows passive diffusion of materials in and out of cell.</p>

<p>Can someone please answer the protein and RNA question please? I still think it’s tRNA b/c ribosomes themselves don’t contain proteins. They help create them using tRNA.</p>

<p>Remembered another question!
For the transcription / translation picture, the question was what has hydrogen bonds, and it was number 2 I think. The one pointing to the hydrogen bond b/n 2 bases on the DNA (not the backbone).</p>

<p>Oh lol i thought it was the one that said releases energy from food lmao</p>

<p>Ribosomes are formed by ribosomic RNA and 80 proteins. tRNA is only RNA, no proteins.</p>

<p>And the ants is a bell curve if the question said: from the time it starts to decompose until the end. Or something like that, we’ve discussed that one so much I’ve mixed everything up xD</p>

<p>judging by this, I probably got a tleast 8 wrong… :confused: I’ll probably have to retake it xP When do scores come out?</p>

<p>agreed with #370. and it was called a dehydration reaction; they left out synthesis so it couldn’t clue you in. the general section’s question was “which results in the release of oxygen”. lol at the answer choice hydroLYSIS. :p</p>

<p>What was the first question?</p>

<p>1st question was what converts energy or something.</p>

<p>Wait but tRNA was also attached to proteins, wasn’t it? It “contains” proteins as well.</p>

<p>tRNA just carries the aminoacid and temporarily binds to mRNA, it doesn’t really contain any type of protein whereas ribosomes are exactly a mixture of proteins and rRNA</p>

<p>Darn. ><; what do you guys think the cutoff will be for 800? (bio E)</p>

<p>Does anyone remember what the actual number answer was for the amino acid bond question- I put 4…</p>

<p>Also- I think I got -5 and 3 omits. Will that be in the mid 700s because that is my goal seeing as I didn’t study at all</p>

<p>I found this answer from the posted document for expected answers.
But I cannot remember this question regarding prenatal development; or is it from Ecology section?</p>

<p>No, it wasn’t on E… I don’t think this question was on the test. I don’t recall anything about mothers and fetuses.</p>

<p>that’s great!</p>