Biologists! How was it?

[Matt The Rat]

Fluctuations in copper levels was what I put.

[nancy]

no im tlking abt part b) with the copper
n im curious to know did ppl think it was easy bc they were able to fill it in?? lol in biol you can write wtvr does that make it easy?

[annie]

I'm confused about the virus multiple choice question,    if you guys can remember there was a diagram of a virus, and we were asked to identify what the inner membrane thing was, i was choosing between

a) protein coat
b) lipid envelope

I chose lipid envelope because i figured that the protein coat was the outermost coating of a viral cell..... But after the exam my friends said i was wrong and the protein coat surrounds the genetic material , but  then someone else said it was the lipid envelope??? who knows the answer

[Jed]

The diagram had a picture of a phospolipid bilayer outside the protein coat didn't it? I put protein coat.

[JL_91]

Having just checked my textbook, I think it should have been protein coat - the phospholipid envelope surrounds the protein coat. As I said before, I also put lipid envelope..so I guess that's one mark off :/

[Matt The Rat]

I put protein coat.

[annie]

yeah -1 mark for me too  i guess
which is alot seeing as how this years exam was so much easier and the A+ cutoff might be somewhere in the mid - high 60s

[nancy]

could you guyz define rational drug design?? also one more q lol with the graph in the multiple choice- solubility---
versus lipid permeability--- what did u guyz put down/?
btw i also did protein coat!

[annie]

Solubility vs lipid permeability question

ANS: ethylene glycerol is harder to remove than water

i think that was pretty straightforward one cause all the other options were contradictory..

[melaniej]

Ah i had that then changed it!!

i think...hmm i cant quite remember!

i did say protein coat tho...twas just a guess!

[nancy]

but even though water is not lipid soluble it is more lipid soluble than alcohol? so y couldnt a be right?

[JL_91]

LOL my answer to that rational drug design was such BS. We never really studied it - so I just made up something about how it's to do with considering the target cells/cell components at a molecular level and designing highly specific drugs that exert their effect by integration with cellular processes.. :S

...damn that protein coat question!!!!!!!!! I've lost at least 2 marks now grr

the MC graph one - I got the same answer as annie I THINK...I was taken aback by that question at first, but then when I looked closer it wasn't that bad

[nvl]

LOL my answer to that rational drug design was such BS. We never really studied it - so I just made up something about how it's to do with considering the target cells/cell components at a molecular level and designing highly specific drugs that exert their effect by integration with cellular processes.. :S

thats 100% right actually, since rational drug design is all about molecular specificity

[username]

For rational drug design I wrote: Technique in which the active site of the infective agent is established and the second molecule (the drug) is made to fit into the active site on the agent and inhibit it's effects.

[JL_91]

LOL my answer to that rational drug design was such BS. We never really studied it - so I just made up something about how it's to do with considering the target cells/cell components at a molecular level and designing highly specific drugs that exert their effect by integration with cellular processes.. :S

thats 100% right actually, since rational drug design is all about molecular specificity

Oh..yay!

For anyone who's interested, I just checked the cutoff mark for an A+ in Exam 1 last year...it was 60.5/75