<p>Chemiosmosis occurs in plants and animals.</p>
<p>It’s when the ETC of the mitochondria takes the electrons from NADH and gives them to oxygen. Then hydrogen ions (protons) accumulate in the matrix. It occurs in the thylakoid in plants.</p>
<p>Okay, here’s my situation: For one of the problems, I listed homologous structures, but I described analogous structures. Homologous structure is a correct answer but I put the wrong description. Will I still get a point at all for correctly listing it.</p>
<p>My other situation is the same as my first but instead, I listed photosynthesis, which is create and stated that it degraded 18 ATP all together to create by products and glucose in the Calvin Cycle. However, I listed OAA, which is not a product in the Calvin Cycle, as a product…Will I get penalized, even though I got everything else correct but listed OAA by mistake?</p>
<p>Would the solute concentration of the water in the tank work as a variable? I had no idea what to put for that question, so I just made something up. :/</p>
<p>And I wrote that RNA viruses went against the central dogma. :P</p>
<p>I did turgidity and foodsupply for the tank. RNA retroviruses aka HIV work…unfortunately, I drew a blank and started talking about cancer</p>
<p>would positive feedback and negative feedback be two different mechanisms of protein regulation or are they two similar? I discussed the lac operon and tryptophan</p>
<p>Lac Operon only applies to prokaryotes. The question asks for protein regulation in EUKARYOTES.</p>
<p>Oh no, I discussed operons and maintaining pH to activate/deactivate already made proteins (in lysosomes, stomach)… -_- half at least?</p>
<p>lac operons are mostly in prokaryotes but also in some eukaryotes</p>
<p>For the ATP structure, I said it was an adenine nucleotide with 2 additional phosphates…is that right?? I also described GTP, not realizing it said “or”…I also wrote out the name of ATP and said that it breaks into ADP + Pi. Do you think I’ll get points for that?</p>
<p>position69: the chemiosmosis thing isnt the one where u describe where it occurs thts the specific function of ATP</p>
<p>invisible: it is an adenine nucleotide with THREE additional phosphate groups, at least that’s what i wrote</p>
<p>does ATP synthase pump protons against their concentration gradient, or did i mess up?</p>
<p>and is saying that Adenoside triphosphate has 3 phosphorous atoms acceptable?</p>
<p>ATP synthase uses the proton motive force created by the hydrogen to synthesize ATP. I don’t think it “pumps” anything, but correct me if i’m wrong. phosphorous atoms? I dont know, I put phosphate groups, but maybe you’ll get some credit.</p>
<p>ATP/GTP have three phosphate groups, but really only two of them are “additional.” All nucleotides naturally have one phosphate group already, along with the 5-carbon sugar and nitrogenous base.</p>
<p>Also, no, ATP synthase doesn’t really pump anything… The protons in the intermembrane space are way more concentrated than in the matrix, which is what causes the electrochemical gradient. The pH (since they’re H+ ions) differs by a factor of 1000 if I recall correctly. But anyway, since ions can’t move freely across membranes, they flow out through ATP synthase and the energy that motion provides, “like turbines in a dam,” allows ATP synthase to attach another phosphate group to ADP. I’m pretty sure it was 3 H+ ions per 1 ATP. But yeah, the protons are definitely moving with the concentration gradient, not against it. I don’t remember what pumps the H+ ions over there in the first place anymore, but it’s not ATP synthase.</p>
<p>I dunno, I don’t think the graders will be too irked just because you said phosphorous instead of phosphate group… Technically, phosphate groups contain a phosphorous each, so saying there are three phosphorous molecules is correct, lol. Just not the whole picture.</p>
<p>I messed this up too, well not really messed it up. But I think we will not get a point for not mentioning the ribose sugar in ATP. All I said was adenine nucleotide with 3 organic phosphate groups.</p>
<p>Yep, I messed up the ATP part by calling the five carbon sugar deoxyribose</p>
<p>Ok… so guys i was looking at the form b frqs and I’m ****ed. The form b was a LOT easier… at least for me.
Since i don’t exactly know how to post a link im just copying and pasting from the document:</p>
<ol>
<li>Was on transduction/transformation of bacteria</li>
<li>Sexual reproduction of plants— i would’ve loved this considering i spent a lot of time studying it. </li>
<li>Water lasjdfklajsdflkja</li>
<li>Respiration in a tree, paramecium, a fish, or a mammal. Out of which you had to choose 3. </li>
</ol>
<p>I’m sure that i would have gotten like 9s and 10s on these essays… instead of ours</p>
<p>What do you guys think? Did you like ours? or do you, like me, wish we had the form b frqs?</p>
<p>Waaaait. So there are different forms. I had the bacteria transformation. etc. It was ridiculously easy… Weird. I did not know there were different forms haha.</p>
<p>I think the different forms are for different countries…cuz smeone taking it in China/Japan does it several hours early andinfo could leak to the US etc before we take the exam here, sothats why they do it</p>
<p>craaaaaaaaaapppp i forgot the ribose sugar in ATP…will i get points for mentioning adenine and the 3 phosphates?</p>