<p>Yea same. Ahhh its the MCs that worry me. Too bad we can’t talk about them.</p>
<p>Yeah I think for the protein regulation stuff they were looking for like, operons.</p>
<p>for protein regulation, i put how the proteins are sent to the golgi bodies and ER and then, depending on what the cell needs, are specialized and sent out…idk if that’s right lol</p>
<p>for protein synthesis regulation, i put how mRNA can be degraded if no more proteins are needed and how an mRNA transcript can be reused multiple times if a protein is in demand…again idk if that’s right, this was a vague question</p>
<p>the rest of the q was pretty good though in my opinion</p>
<p>Yea, I don’t think they were looking for operons.</p>
<p>Huh, I just figured that operons like the lac operon are used to control the breakdown of lactose. And in order to do that they have to use enzymes, which are proteins. The other thing I just put was just bs. I put that the nucleolus controls it because it makes ribosomes which synthesize proteins.</p>
<p>Yea I put golgi bodies. The question is “Discuss TWO specific mechanisms for protein regulation” I dont think they menat both.</p>
<p>For the TWO specific mechanisms of protein regulation, I put enzymes (reactions) and carrier proteins (active transport); anybody else do this?</p>
<p>I thought operons were only present in bacteria.</p>
<p>They asked for protein regulation in EUKARYOTES.</p>
<p>^ wikipedia begs to differ</p>
<p>Operons occur primarily in prokaryotes but also in some eukaryotes, including nematodes.</p>
<p>[Operon</a> - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Operons]Operon”>Operon - Wikipedia)</p>
<p>regardless, i didn’t use operons lol</p>
<p>What did everybody put for changes in the physiology of the fish?</p>
<p>For the TWO specific mechanisms of protein regulation, I put enzymes (reactions) and carrier proteins (active transport); anybody else do this?</p>
<p>haha i had no idea what protein regulation was so i started rambling about primary and secondary structure…lol…hopefully there’s a big curve</p>
<p>^ lmao, i bsed that one (physiology)</p>
<p>i put that changes in body temperature (since fish are cold blooded) could cause changes in metabolic activity since enzymes work best at different temperatures…uhhh idk what else i put lol</p>
<p>I put changes in circulation/respiration and expansion of the fish.</p>
<p>Did countercurrent exchange fit in with the last part of question 1? I wasn’t really sure how to relate it but I described it.</p>
<p>For protein regulation, I wrote about the Golgi Apparatus to modify them and then I mentioned something about operons (not in a lot of detail though because I don’t know much about them).</p>
<p>And for the evolution one, would natural selection and genetic drift be wrong? I saw other people saying it was more molecular (mutations, etc.)</p>
<p>protein regulation?
I talked about protein synthesis, which was one of the options. I think I was writing about operators and RNA modification like intron splicing.</p>
<p>I kinda mentioned concurrent exchange in #1 in relation to one of the control factors not included.</p>
<p>About evolution, I was unsure. Where we supposed to note the reasons for NEW variation (eg sexual reproduction) or how variation can CHANGE (eg genetic drift).</p>
<p>I put that if the temperature increases, it could cause denaturing of enzymes and so a lot of their systems wouldn’t work properly.</p>
<p>Wait, for protein regulation, did it mean how is the synthesis of protein regulated, or how proteins regulate activity in the cell?</p>
<p>The questions says “Cells regulate both protein synthesis and protein activity. Discuss TWO mechanisms of protein regulation in eukaryotic cells.”</p>
<p>I wrote about enzymes and carrier proteins.</p>
<p>Writing about intros and all that would seem like a repeat of part a of that question.</p>
<p>“Identify TWO mechanisms of genetic change, and explain how each affects genetic variation.”</p>
<p><a href=“http://www.ucopenaccess.org/mod/resource/view.php?inpopup=true&id=1437[/url]”>http://www.ucopenaccess.org/mod/resource/view.php?inpopup=true&id=1437</a></p>
<p>^ would mutation and natural selection be acceptable?</p>