<p>Okay, in regard to the infertility one--it has to be I only. I checked it many times, and so did my friend, who got 800s on all her practice test. The key word there was "inhibited". The vagina already has an acidic pH which fights off yeast infections and the like. This is why only 50 sperm reach the egg (did anyone else see Miracle of Life?) I also checked out an infertility website and asked my bio teacher, and she said that I was right (P.S., for anyone that said II--that was untrue because there is an increase of LH levels anyway right before ovulation).</p>
<p>About the burning glucose one--they didn't specify that the burning had to take place outside the body. Because of this, why should it have a higher temperature? The oxidation obviously is just a developed passageway that has been formed so that glucose metabolism will be more efficient.</p>
<p>I forgot the answer and the question for some thing on photosynthesis (in which they asked whether light stimulated the reaction or whether it was endergonic). I was rushing, though, so I put down one of them and moved on. Correct me if I'm wrong, though.</p>
<p>I'm asking about this stuff because by reading through CC and stuff, I've found like 5 wrong. I'm not going to cancel because I'm only a freshman and I figure if I do badly, I'll just retake it after AP Bio, but I'm really worried about this stuff. I knew everything for this test, but I went in and made a lot of careless mistakes. I hope I still do well, though. Some CC answers could be wrong--they're not be all, end all. The curve's pretty good for Bio, and I didn't omit any. Any answers to these questions would be well appreciated, though.</p>
<p>The acidic PH of the vagnia is neutralized by seminal secretions allowing the sperm to not be killed by the acid. Can anyone remember the exact quesiton for this one, the inhibit ovoluation I, II, III one. I really thought it was I and III.</p>
<p>Hmmm...from the ones posted (out of the first 52), looks like I got about six wrong-that's pretty decent. Hopefully I got four more wrong out of the last 28, and that would be about a 740. <em>fingers crossed</em>.</p>
<p>And as for the glucose burning one, combustion occurs at a much higher temperture than the controlled step by step electron transport chain of cellular respiration. That is why it occurs at a lower temperature -- it is not being oxidized all at once, but step by step.</p>
<p>I used Barrons and thought it was pretty good. It's the only reason i got the malaria-protozoa connection right and some other ones. Other questions, however, I had to rely on AP Bio knowledge.</p>
<p>no calvin cycle CANNOT occur in the dark..because the enzymes required for calvin cycle still need to be activated indirectly by sunlight, AND the stomata of plants are closed at night anyways (except CAM which i ll get too) ..meaning no CO2 in......and even CAM btw doesnt do calvin cycle at night the only thing it does at night is fix CO2 into Malic Acid</p>
<p>what were the answers for the snake diagram?
the question asked which structure is best left as a vestigial for watersnake (name?) I put the heat sensing jaws because i thought they lived in water and it woudnt do them much good trying to sense heat in water.</p>
<p>And for the first question in section E,
it asked something about Pleoiploidy (***? sp?) what the hell was that? I put that it would be seen less frequently than in diploids, but i wasnt sure between that and "it would be seen more more frequently than in monoploids"</p>
<p>also, the albino plants that was leeching off the other plant, what was it leeching off? I've been told that it was leeching of "nutrients," but nutrients is a very broad category. Specifically what was it leeching? was it the CO2?</p>
<p>for the page before the answer is I and III b/c....
(fallopian tubes being blocked and the sperm pH differning)</p>
<p>the pH of the follicular fluid alternates between acidic and alkaline every couple of days, which is what plays a major factor in which sperm will be successful in penetrating the egg. Also the balance between acid and alkaline in the reproductive tract is very important. It isn't always alkaline, nor is it always acidic. There is a reason for this; If the reproductive tract was always alkaline women would suffer from constant vaginal infections, that thrive in an alkaline environment. If it were always acidic the environment would be too hostile for sperm to live, and a constant acidic environment could lead to fertility problems.</p>
<p>Zachsta, the egg is fertlilized in the fallopian tubes. Therefore if there was a blockage on the other side of the egg, it would be feasible, as the sperm would'nt be able to get in.</p>
<p>The egg is FERTILIZED there, but that wasn't the question. I believe the question asked solely about OVULATION. I could be wrong, though...I thought it wasn't fertilization, but fertility? As in, the ability to fertilize?</p>
<p>i'm pretty sure the question asked about ovulation too, i spent a good 7 minutes on that question (second time around though..) but couldn't decide... so i just innie minnie mini mo-ed.. i tend to do that a lot</p>
<p>I asked four biology teachers in my school (well, that's all the honors teachers at least) and they all said that it was I only.... (fertility Q)</p>