essence_of_cool

i found this... kind oif silly, but summarises okay http://bcs.whfreeman.com/thelifewire/content/chp50/5002s.swf does anyone know where hormaones are made? I thought ribosomes for a.acid dericvatives and protein, peptide hormones, but seeing as steriod hormonesa are lipophilic, and are hence fats... I dont know where they would be produced. Is the ribosome right? And where are steroid hormones produced? Merged post follows: Consecutive posts mergedhttp://lrn.org/Content/Quizzes/Qendocrine.html and this...

i use the nature of biology books book 2 third edition... btw, sorry if u had your sac today and got no further help. I was busy all day yesterday with paretn teacher interviews (yawn), so i couldnt even og on to this.

let me guess... Voltman, you have a SAC. I know this because the last time i came on this forum, for sac help, you had one too and asked me what school i went to. Guess what... i have a Blood glucose sac now as well. Maybe we can helop each other out, along with the fellow helpful contributers. I agree with all but the first two posts. I also heard that glucagon inhibits production of insulin as one of its many effectts, and visa versa for insulin. Is this right? Also, what kind of questions will they have on it. Mine cant just be abiut insuling and glucagon, rioght?

from what i know... protein is the polymer of amino acids. Peptide bonds join two amino acids together. SO if one can consider a chain of only 2 amino acids a protein, then i think it would be a polymer. But i reckon if its just like a random segment of 2 amino acids for no reason, then calling it a polymer, although techincally correct, is a bit ambiguous as it would have no function but probably to be digested into monomers. I would call small chains polymers only i specifically asked what peptide bonded amino acids TECHNICALLY are.

Hey voltman, i responded to your msg, you have practically an experimetn exactly the same! EXACTLY THE SAME!!! as i had two days ago. I have a sac on it on monday... what are the chances. U do year 12 bio right? Anyway... if u see my thread on the matter, i kinda listed stuff that i thought was relevant to the prac... although by your means of time, im too late telling you this...

i dont think itll be possible to kknow everythiong or almost everything. Plus, how would it work; would you need to look up stuff like yopu do now and actually read the text on the supposed screen (although no screen)? Coz if so, then it would be just like having ultra ultra portable access to internet and nothing more. Bye bye borg fantasies. But if you mean like, zapping info into ones conscious, then i still dont think it would be possible to sustain memory of everything... Also, youd probably need a sixth sense, becasue being in your head, youd have to have some way of detecting what the internet/chip is transmittiing (you cant see it, smell it, taste it, hear it, or touch it...) Probabbly a sensitivity to electric stimulus would work, but very deep porby intrisuve surgeries needed. Also, very quick way to kill someone; throw a strong magnet near their heads, casue a haemorrage. LOL ANyway... yeah... just some random thoughts on the matter...

Hewy you know what... thanks guys... i think i have enough info for this small SAC. Thanks for the advice, it helped. thaks and cya

In response to gonelli... cool thanks... but i heard from a tutor that the detergent emulsyfies the cell membranes, breaking open the cells releasing catalase... Also i heard that the grounding with sand breaks open the cells... The only other hing i can think of with regards to the crshing is that it increases surface area to volume ratio, but ultimately,i dont see how that would play a role as there is no transfer of material across a membrane relevant.., only release or unreleased catalase (catalas is protein = too big for diffussion, hence no trnasfer) and catalase would be released determined by whether the cells got crushed or not... anything here ring true.. replies appreicated...

Hi people... I had a SAC (student assessed coursework) yesterday and i have a test on it next week, and i was wondering if i could get some advice. Firstly if anyone has done anything similar to this before (below) heads up would be great (although admitedly, cheating... but anyway) The prac was this: We reacted equal amounts of hyddrogen peroxide into mixtures of detergent, and liver, where each of the three test tube used had fresh dice liveer smaples, boiled samples and crushed samples (with sand) respectively. The reesults were that the first andd last eruted in bubbles and the boild sample did nothig. My knowledge so far of this, is that with the fresh liver, moderate amounts of catalase were around, and with the crushed one (crushed with sand) the ceells were brroken open releasing the (intracellular) catalase into its surroundings, provivding much more to react with. The boiled sample had all its enzymes denatured so no reaction present. The bubbles were the reult of large amounts of O2 being formed as a I still however dont understand the role of the detergent, as reading online i find that the reaction, bubbling, would've occured regardless of detergent present. y friend claimed that the edetergent killed cells releasing more catalase,, giving moreevident relsuts, but i doubt this. The kind of questionss my assesers are going to be asking are the sort where they ask me to draw daigrams and make graphs. Note that im not doing this to cheat, im doing it because its a good way to do research, to learn from thoise more experienced than me, and also, my teacher suggested it too... Any help would be appreciated. thanks

Wow! i did not know it was that radioactive. And yes, stupid me, i did watch that (stupid and ridiculus) braniac, and i now fell cheap and violated because of it. Thanks that answered my question

Im no chemistry genius (im more into bio), but... I just spent the last 20 minutes drooling at the sight of idiots placing minute amounts (1-2 grams) of Li, Na, K, Rb, and yes... caesium into bathtube with water. Anyway, big bang. So how come i cant find a single video with francium! Is francium that reactive that it cant be SHOWN?. I was also thinking, wouldnt it be efficient to make some kind of weaponized version of a francium or caesium bomb, where it contains both the alkali and some water? Anyway, appreciate any responses

no! dosent bother me! it interests me! and what labels

i happen to know that if all bacteria were removed umans would not live more that 2 hours. This is from some documantary, stated that there are bacteris that nuetralize intense ions that would normally cause mass creation of ammonia, hence bad blood, hence death. Also im pretty sure that if you had no bacteria in your gt, you wouldnt be able to eat any veges, right? And eating meat would be hypocritical seeing as meat has a lot of bacteria in it and eating it implies that you have bacteria in your gut again!

I often get what i call 'episodes' of unexplained happiness and anxiousness or sometimes sadness. Im baffled by this, because, in most of these seemingly unoticable episodes i feel unexplainably happy and energetic even though there is no reason for me to be. Sometimes i am waiting at home before going to school to a boring day, with nothing but boredom and monotonous tasks to undergo; with nothing to look forward to; and with nothing to be happy about at that moment, yet i fell uncontrollably happy... Before we go on: 1. No, im not taking drugs, 2. and note that i dont get stupidly hysterical or anything, just a bit happier and excited... I was thinkning that maybe this had something to do with a slight boost of usage of a particual neurotransmitter or hormone. Other interesting info: It ususally hapens in the morning, the effect is usually happy, not sad, and i have not noticed any external influence that could promote these 'episodes' (eg. food). Anyway, im curious to know whats going on. Thanks