<p>any questions post here. </p>
<p>i'll start off. so during lecture, forte says tips of antibody have very specific amino acids. he says its different for every pathogen. He means different for every antibody right?</p>
<p>Yea, i think so. different antibody for different pathogens.</p>
<p>I still don’t get the Membrane potential stuff. he keeps saying when there’s high sodium permeability, sodium goes from outside to inside (cytoplasm) so more positive inside and more negative outside.
And with high K+ permeability, K+ is more concentrated inside so the gradient moves from the inside to the outside. making inside (cytoplasm) more negative and outside more positive.</p>
<p>I thought the sodium/potassium pump was… Sodium out and potassium in…
im so confused. explain? thanks</p>
<p>Because ions want to move down their gradient (from high to low), eventually it will reach equilibrium (equal concentrations on both sides of membranes). But the cell can’t function if it’s equal. There has to be a way to restore the gradient, that’s what the Na/K ATPase pump is for. It pumps sodium out and potassium in to restore the gradient so that the cell can function. Because it’s pumping Na & K against their respective gradients, it needs ATP, a source of energy. </p>
<p>There’s a lot going on here that is not explained at all in Bio 1A so it can be hard to understand it without seeing the whole picture.</p>
<p>ohhh… ok. so it’s two different concepts… okie. thanks.
oh boy.</p>
<p>so i noticed he didn’t cover everything he put in his outlines at the beginning of each lecture in the manual. for example, for respiration, he didn’t mention water and mucus and stuff. do you guys know if we’re still responsible for that stuff? </p>
<p>also, do you think he only tests on stuff he lectures about or will there be concepts from the book? i’m freaking out cuz i have 10 webcasts to do still :(</p>
<p>In lecture on monday he said that a student asked him the same question (not covering certain slides) and he said that we are NOT responsible for the material that he has not lectured about.</p>
<p>10 lectures? HIGH FIVE!!! I have like 6 more to do. hahaha</p>
<p>I sure hope that…he remembers what he lectured and didn’t lecture. lol.</p>
<p>i took notes up until 22… i have 5 more :(</p>
<p>dood. we’re so effed. i hope no one’s studying like me.</p>
<p>6 out of 19
Comment: You really need to do some serious studying.</p>
<p>SCREW YOU. That quiz was so buttraping hard. ***. This is why I will resort to drinking all the pain away on Friday night. Gdaamn it.</p>
<p>what qre you talking about batman? is that a bio1a quiz you’re talking about? o.o</p>
<p>i suck at quizzes. i score 1 sd below the mean every quiz. never got above the mean before…
does anyone know here meighan curves the average at?
B-?</p>
<p>forte’s quiz. not ExamR. just the quiz</p>
<p>88888888 are you talking about the lab quizzes? I know vedita is hard, but her quizzes seem pretty doable if you study really hard. The rat lab quiz was just straight memorization. All i did was memorize all the diagrams and the pathways before lab and got a decent 3.7/5. As long as you do what she tells you in the email it works out because it has gotten me above the mean for every quiz.</p>
<p>o forte’s hard random quizzes…</p>
<p>well… you’re too smart calbear2012. the thing is i don’t read the lab manual til 30 mins before lab…and even with that i just skim it.</p>
<p>Wow well there is your problem. If I spend at least 8-10 hours on each lab quiz then i better get above average…and i am SOOOOOO NOT smart. I swear Berkeley really knows how to humble people…especially if they take bio 1a/l >.<</p>
<p>8-10 hrs? oh boy… i wish i had that motivation and unprocrastination… do you sit near the far end of the class away from front door?</p>
<p>wow 8888 are u serious? u only study 30mins before the quiz? rofl</p>