<p>Well, we are supposed to finish the Mendelian Genetics unit by the end of next week, or by the start of the one after that, so yeah, that’s that plan.</p>
<p>We covered cellular communication, mitosis, and meiosis in two days since it’s not a big lecture.</p>
<p>:O we just took our chapter 7 test in campbell’s today… (which I bombed unfortunately lol)
Umm so apparently we’re behind but it’s to be expected since my school district starts later than most schools, around the 2nd week of september.</p>
<p>My teacher says we don’t have to know the specific enzymes or intermediates of the process, just know how much if consumes and given off (or the net ATP, NADPH, FAD+, etc…)</p>
<p>Mascara - Our teacher plans it out so we have roughly 3-4 weeks of review/cram time at the end of the year, and we’re two classes behind, and we’re on Mendelian genetics, which we just finished today. So, yeah, self-studying is something I’d consider strongly…</p>
<p>You barely need to know anything about cellular respiration.</p>
<p>Here’s what you need to know (and most of it probably won’t show up on the exam, but if it does it’s most likely covered here):</p>
<p>It takes place in mitochondria.
glucose + oxygen -> carbon dioxide + water + energy (in form of ATP)
The steps are: glycolysis (outside the mitochondria), the citric acid cycle (in the mitochondrial matrix), and the electron transport chain (on the inner mitochondrial membrane, look at a diagram of a mitochondrion if you don’t know where these places are).
The first two are categorized under substrate level phosphorylation (the phosphate group added to ADP is taken from something else), the last is categorized under oxidative phosphorylation. Only glycolysis is part of anaerobic respiration; the other two are part of aerobic respiration (requires oxygen).
In these steps glucose is broken down and electrons are taken from it by electron carriers (which are NAD+ and FAD, they are transformed to NADH and FADH2 when they have taken electrons). Oxygen is the final electron acceptor (where the electrons eventually go).
While some ATP is made during glycolysis and the citric acid cycle, most is made in the electron chain, where the electron carriers allow a proton gradient to be generated, resulting in ATP being made by a process called chemiosmosis.
Glucose isn’t the only thing that can be broken down to ATP, other carbohydrates, fats, and proteins can be used too.
If oxygen is not available then a cell might use alternative methods of producing energy such as lactic acid fermentation and alcohol fermentation (these use substrate level phosphorylation, and produce much less ATP than oxidative phosphorylation).</p>
<p>Some teachers make you memorize how many ATPs, NADHs, etc are made each step, but I don’t think that will come up on the AP test - it’s not consistent with the AP focus on understanding of concepts rather than on memorization. On the other hand, some teachers make you memorize the every single intermediate step, including enzymes, which I think is ridiculous.</p>
<p>Until the new AP Exam starts being administered, don’t forget that you don’t need to know absolutely EVERYTHING. Broad details surrounding a topic are sufficient for the MC section of the AP exam.</p>
<p>My AP class is a breeze. My teacher is the definition of the absent-minded professor: absolutely brilliant, working on her PhD, and knows the answer to every question. But she often gets sidetracked and as a result we probably won’t finish the curriculum. I’m not complaining, I much prefer self-study. And the lack of homework helps when I have a lot of college/scholarship stuff to do.</p>
<p>Is our class moving at a good rate? So far we are done with: Biochem, Cell Organelles and Cell Theory, Evolution, Mendel and Heredity, Hardy Weinberg, and Molecular Genetics (DNA and DNA replication, transcription, translation). We are going on to cell respiration and photosynthesis.</p>
<p>I forgot to add cell cycle and cell division. Our teacher goes very in depth as well, it really feels like a college class; there are things on the test that one can only get if he/she pays attention in class, otherwise the answer is not found in the book, handouts, notes, etc. We just did a DNA extraction lab by borrowing some equipment from Princeton University who kindly lent it to my teacher. And apparently we were on genetics, but we’re not done; our test on it is going to be as soon as we return from thanksgiving break. I’m assuming when we’re done with genetics, we’ll have the following left to cover: Animal Physiology, Taxonomy and Classification, Plants, and Ecology. We’ll have four and a half months to cover these topics so I’m assuming we’re going to go as in depth as possible. </p>
<p>We’re almost through the genetics unit, just one or two more classes on it, and we go to evolution. Our teacher said we’d cover that unit in one week, or rather, three days, is that doable?</p>
<p>As for the anatomy and physiology portion, we’re doing a big study/project activity for anatomy, so we can skip it, and then he will teach the physiology.</p>
<p>Holy hell… I don’t know if you guys are going quickly or if we’re going really slowly, but we’re almost done with photosynthesis in the Campbell 8e book. Fortunately, our teacher assigned the final unit on ecology as summer reading/work, so we don’t have that to worry about.</p>
<p>How many labs has everyone here gotten through? We’ve done three I believe.</p>