<p>True, but I’ve only heard it talked about in reference to cellular respiration and respiration. So let me correct myself:</p>
<p>Phosphorylation = P04 + molecule</p>
<p>gosh it’s so hard to tell what topics can and cannot be tested
so screwed -.-</p>
<p>So…what do we need to know for cell communication?</p>
<p>protein-based messengers and lipid-based messengers.</p>
<p><a href=“http://media.collegeboard.com/digitalServices/pdf/ap/10b_2727_AP_Biology_CF_WEB_110128.pdf[/url]”>http://media.collegeboard.com/digitalServices/pdf/ap/10b_2727_AP_Biology_CF_WEB_110128.pdf</a></p>
<p>It’s just a link to the frameworks, if you CTRL+F and you can look for cellular respiration and see it for yourself.</p>
<p>My teacher made us go into the frameworks and define… everything. I’m kind of nervous about what they’re going to ask but if you know some of the things of the bullet points, you’re probably set for the FRQs.</p>
<p>EDIT:
Just saw this one…
Memorization of the names of the phases of mitosis is beyond the scope of the
course and the AP Exam.</p>
<p>Kind of blown away here, I have absolutely no idea what I’m SUPPOSED to know and what I don’t need to know.</p>
<p>Protein-based messengers are protein-mediated, meaning they cannot diffuse through the membrane and must alter the confirmation of an embedded protein, thereby activating a g-protein which, in turn, will activate a chain of reactions leading to amplification and eventually a transcription factor.
lipid-based messengers diffuse throught the membrane</p>
<p>If you hear about a 16yo girl having a breakdown in the middle of testing because of the FRQ being on anything about gases, plants, or cells, it would be me. </p>
<p>ha, only kidding. But it’s time for me to go to bed. I need to get as much rest as possible. Good luck to everyone!</p>
<p>And Thanks, hobbithopeful!</p>
<p>lipid-based messengers are like hormones and steroids, they are intracellular and attach to an molecule inside of the cell which induces it.
for example, one would diffuse through the membrane, attach to an intracellular messenger, the new molecule would diffuse into the nucleus and become an activate gene transcription or something.</p>
<p>protein messengers can’t diffuse through the membrane, so the signaling molecule acts as a ligand and attaches to a G protein on the membrane.</p>
<p>^exactly. It’s so nice to find learned ppl online.XD</p>
<p>You’re comments about the photosynthesis was helpful. I understand everything about how it works, why it works, but can never remember the exact steps. You saved me a lot of worrying because its difficult to remember those steps.
Good night to everyone who lives in the later time zones and good luck to you.</p>
<p>Not asking for anything specific (I don’t want your or my scores canceled) but how hard did you think it was? I’m super nervous for this test…</p>
<p>Btw this is my first post on CC guys! Whoo!</p>
<p>EDIT: Directed at teeskim btw, didn’t quote correctly for whatever reason…</p>
<p>for everyone worried about specific steps of cellular respiration or photosynthesis, or any major process, i wouldn’t be worried about WHAT exactly happens (for instance, the steps in the calvin cycle), but more so WHY it happens, like if an organism could no longer take in oxygen, what would happen? or if acetyl coA was no longer produced, where would the process start?</p>
<p>the test was completely changed this year to be more inquiry based, it is no longer fact based, but more understanding and applying the concepts to lab investigations or other situations.</p>
<p>EDIT:
Just clarifying, nobody has taken the exam yet. I have not taken it, nobody on this site has seen the exam except for the people who made it over at collegeboard.</p>
<p>Everybody here is just theory-crafting, seeing what people are worried about.</p>
<p>Also, I decided I’ll leave my Drive link running until tomorrow. Who’s going to track me down?
And since it hasn’t come up in a few pages, here’s this link, if anyone wants it some more so you don’t have to search for it, it’s the practice test again.
<a href=“https://docs.google.com/file/d/0Byoa8-JKGIc9Tzg0c29KZTJQOGM/edit[/url]”>https://docs.google.com/file/d/0Byoa8-JKGIc9Tzg0c29KZTJQOGM/edit</a></p>
<p>knowing facts intricately = understanding</p>
<p>Can anyone explain #6 on the free response of the practice exam??</p>
<p>It’s all about processes, because in all the practice MC and FRQ they ask what happens when a process is stopped, so you have to know what comes before and after in the process such as photosynthesis or a body system which you don’t have to know anything about, and then the long term consequences.</p>
<p>Who wants to be an angel and briefly describe the structure and function of primary, sec, tert, and quat structures in proteins?</p>
<p>Primary: order of amino acids
Secondary: hydrogen bonding between amino and carboxyl groups of adjacent amino acids creates a three-dimensional shape in the form of either an alpha helix or a beta pleated sheet
Tertiary: hydrogen/ionic bonding between R-groups of amino acids, disulfide bonds (when a sulfur atom of the amino acid cysteine binds to the sulfur atom of another cysteine)
Quaternary: when multiple peptide chains are bonded together</p>
<p>This is important so here goes. Primary structure is essentially the order of amino acids, then secondary structure is the shape of the structure, either alpha helix or beta coils, tertiary is then how it folds, many possibilities for that, and then quat structure is how different amino acids interact to form subunits, that one is more complicated and not important.</p>
<p>Finally comment of the night:</p>
<p>Life is not a static system feeding endlessly into itself. It is not only the ceaseless recycling of energy and matter. Life is… well LIFE: unparalleled in its adaptability and versatility, unequalled in its beauty and grace, and unmatched in its brutality and coldness. In eight hours, we shall all be seated before the exam, the shrink wrap removed and the AP labels placed, and we shall feel power of life. For we are part of life, part of a breathing, striving system. And that is what biology truly is about. So goodnight, scholars of college confidential!</p>