<p>For anyone who is still looking for some extra practice and hasn’t stumbled over the 2008 audit exam, you can get it here: <a href=“http://apbio.anndannenberg.com/APBiohandouts/Practice%20exam%2008.pdf[/url]”>http://apbio.anndannenberg.com/APBiohandouts/Practice%20exam%2008.pdf</a></p>
<p>It was never administered, but it’ll provide another gauge to work with.</p>
<p>how good is barons? Score conversion wise?</p>
<p>Can anyone explain tertiary structure and quaternary structure to me? I understand primary and secondary just fine.</p>
<p>Tertiary Structure is when a polypeptide folds into its final structure. This final conformation is influenced by a variety of factors. For example, hydrophobic interactions will cause hydrophobic side chains of amino acids to be towards the inside (away from water) of the molecule. Disulfide bridges will form between certain side chains containing sulfhydryl functional groups. Van der waals interactions( like hydrogen bonding) will also occur. SO, basically it is how a polypeptide becomes folded into its final conformation.</p>
<p>Quaternary structure only applies when more than one polypeptide function as a unit. It is used to describe the arrangement of these various proteins in this one unit. Think of hemoglobin, which has four different polypeptides ini it.</p>
<p>Hope that helps.</p>
<p>may be a little late here… but can anybody speculate on what this years essay topics might be?</p>
<p>@nervousjim and oates151 thanks.</p>
<p>Soooooooo … guess who’s NOT prepared for the AP Bio exam?</p>
<p>ME!</p>
<p>Haven’t studied yet and there’s only tonight and Sunday to prepare …
Hmmmm.</p>
<p>I am really nervous. This exam is like a giant storm cloud hovering ominously above me</p>
<p>if the free response is about any specifics on the animal kingdoms… I AM SCREWED.</p>
<p>i feel like i won’t know a single thing on the free response. :'(</p>
<p>whenever i get nervous i just think about how EVERYBODY who takes AP bio has to take the AP exam, even those who are just barely scraping by. 37% of people who took it last year got 1’s, and you have to get like more than 60 questions wrong to get that. the curve here is extremely lenient, so as long you have some semblance of an idea as to what your doing, you will be fine.</p>
<p>What do you guys think will be on the FRQs?
Photosynthesis, evolution, behavior, and immune systems are big possibilities I heard.
Do you think they would ever do pH? I don’t think they have yet.</p>
<p>@ xscubastevex</p>
<p>You’re right about it being very lenient, but not everyone who takes AP has to take the exam- at least where I’m from you have to pay $115 per exam so not very many people take it, and those who do are very prepared. Either way, I don’t think it’s going to be too difficult to get at least a four as long as you know major concepts.</p>
<p>@toystoryfan
I really hope it’s not on immune system, that’s the stuff I don’t know well at all. That and the life cycles of plants. Gah, I hate that stuff.
I bet one of them will be on photosynthesis or cellular respiration… and question on that has been on every practice exam i’ve done</p>
<p>@alsamb: There’s not one on every exam. 
Photosynthesis hasn’t been on it since 2004A I believe. Respiration was 2005A I believe as well…</p>
<p>@toystoryfan
Ah, well I haven’t done most of the college board released exams. Seems like a popular topic, though</p>
<p>It’s only $68 per exam where I am. Everyone that takes the class is taking the exam besides a couple seniors. I have consistently gotten top scores over all three classes (alternating with another kid in my class). I’m pretty confident I’m more prepared than some other kids. I feel like I need to study plants a bit though since there were quite a bit MC over plants on the practice exams I’ve taken.</p>
<p>Quick questions,</p>
<p>1.How does the AP Audit Practice test difficulty rank compared to the released 2008?</p>
<ol>
<li>If anyone has the 2008 Released MC’s packet, PM Me, I am willing to pay for it or maybe trade.</li>
</ol>
<p>does anyone else have any other predictions for the frqs (especially the lab one)?</p>
<p>god i hope not embryology, that stuff is terrible</p>
<p>Guys, don’t forget that there are four FRQs. It’s not like doing bad on one is going to hurt that much as long as you can comfortably answer the other three. Besides, according to the 3rd edition of Cliffs, the average score on each of the FRQs is between a high 2 and a low 4 anyway, which is easily manageable for any question unless you are completely clueless on the subject.</p>