<p>@jasonjackson789</p>
<h1>34: sour taste = acid</h1>
<p>Allele T problem: to follow the allele responsible for taste we need to isolate the portion of the DNA responsible for the phenotype. We do this by PCR using primers flanking the DNA sequence that we can identify. After DNA is isolated we can determine which allele it came from because enzyme X cuts DNA from one of the alleles but does not cut DNA from other allele(s).</p>
<p>Oh God that 2008 practice test was terrible. I missed around 30 on that, and for both Princeton Review practice tests I missed less than 8 each.</p>
<p><a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>Supporting Students from Day One to Exam Day – AP Central | College Board;
<p>Can someone please explain number 34 to me?</p>
<p>34 . Which of the following would most likely be observed in plate II after 24 hours?</p>
<p>(a) A clear ring larger than that around disc A in plate I would appear around disc A only</p>
<p>(b) A clear ring larger than that around disc A in plate I would appear around disc P only </p>
<p>(c) A clear ring smaller than that around disc A in plate I would appear around disc P only</p>
<p>(d) There would be a clear ring around both disc A and disc P </p>
<p>(e) There would not be a clear ring around either disc A or disc P</p>
<p>what is the ATP yield for one glucose in respiration. my textbook says 38 but cliffs says 36. is cliffs talking about net?</p>
<p>@Sheep: I was wondering that too</p>
<p>@Charlie: It’s not a specific number, it varies depending on efficiency in chemiosmosis. Some textbooks consider it to be as low as 28, so there is a big variance. But my textbook, too, says 38.</p>
<p>How are you guys studying for the FRQ’s? </p>
<p>Are you guys going straight to the good examples or actually doing them and then grading yourself? How helpful is memorizing Cliff’s sample FRQ’s and reponses?</p>
<p>Feeling unprepared for the essays. :/</p>
<p>@Sheep, the colony is obviously resistant to A, and ALL the bacteria are resistant to P, so there should be no rings anywhere.</p>
<p>@russgenious </p>
<p>I am studying Labs 9-11, there is bound to be an FRQ on them. I am also studying root vs stem structure, plant hormones, cellular respiration and the circulatory/digestive system.</p>
<p>@ 4801: </p>
<p>Should I focus on any other systems? </p>
<p>Any ideas on what can be safely omitted/only skimmed over? Some other posters said concentrate on animal phyla rather than the others for biological diversity for instance.</p>
<p>Also - what is the likelihood of FRQ’s being on the same concepts on last years? I know for APUSH people were predicting FRQ’s based on what hadn’t been tested in a while. </p>
<p>I don’t want to study everything lol (best case scenario but I’m a crammer so not an option right now)</p>
<p>I’m so screwed for this exam. My teacher hasn’t taught us anything relevant to the ap exam. What do you guys recommend I focus on? any tips are welcomed.</p>
<p>meh i don’t think i am going to be able to pull off a passing grade on the exam</p>
<p>@russgenious</p>
<p>I agree with the others when they say study animal phyla. Though I would still study biological diversity. I’m sure you can skim over the cell section. I would say it is pretty unlikely we would get FRQ’s about stuff from last year.</p>
<p>good luck everyone 2 more days :D</p>
<p>@SheepGetKilled: the answer was asked here on Yahoo answers before: [AP</a> bio question, i don’t understand why this is the correct answer…? - Yahoo! Answers](<a href=“Yahoo | Mail, Weather, Search, Politics, News, Finance, Sports & Videos”>Yahoo | Mail, Weather, Search, Politics, News, Finance, Sports & Videos)</p>
<p>What does it mean that I got 83/100 right on the 2008 practice :3?</p>
<p>@matugi: means you cheated. jk<3</p>
<p>Based on what you guys are saying, I think the curve will be pretty generous</p>
<p>here’s a good site w/ good review sheets (not finished yet tho)
[Tumblr</a> AP Bio Study Group](<a href=“http://apbiostudygroup.■■■■■■■■■■/]Tumblr”>http://apbiostudygroup.■■■■■■■■■■/)</p>
<p>@charlieb320. The total yield of ATP is 38. But the net yield of ATP is 36. 2 ATPs are used up in Glycolysis, which is the first step of cellular respiration. Net means Total yield- what you have used up to produce the total yield. :D</p>
<p>Is embryonic development an important concept for FRQs? I was trying to trudge through the Cliffs and Campbells sections but I don’t really have the motivation to know all the nooks and crannies of it… does anyone have any fair estimates or suggestions for what material we should review for FRQs this year?</p>
<p>–> Can we get a list going of potential FRQ topics?</p>
<p>I’ve already said what my teacher thinks the lab-based one could be.</p>