Cindy's Biol Question Thread!

[cindyy]

Lets put it this way, i absoultely SUCK at biology, i just cant seem to understand the concepts, which means i will have ALOT of stupid questions, so i hope you guys will be able to help me throughout the year

QUESTION ONE:
Before the introduction of genetically engineered insulin for the use of people with diabetes, the protein hormone was extracted from beef or pig pancreas.  Explain how you would extract the sequence of amino acid in the beef and the pig insulin to compare with that of humans.

[cindyy]

oh yeah .... you are .. haha i was thinking about the comparison bit! Man why cant they just ask it MORE straighforwardly xD haha

[qshyrn]

maybe in 'Explain how you would extract the'  instead of 'extract', you meant 'expect'
?

if so, then the AA sequence would be exactly the same cuz its the same protein.

[cindyy]

^ LOL it actually is expect. aahahaha my badd, thanks

well i have another question. haha

A particular small polypeptide contains nine amino acids.  The polypeptide has been fragmented in various experiments by breaking particular peptide bonds.  The fragments obtained were:
 
ser-cys-his-pro-arg-cys
pro-arg-cys
X-gly-met-cys
his-pro-arg-cys
X-gly-met-cys-ser-cys

X is known to be the first amino acid in the polypeptide.  What is the primary structure of the polypeptide?

[cindyy]

^ yeah it is, i hate their questions! They all seem stupid and those concept maps at the start of every chapter review piss me off ! Lol

but thanks, i see

[cindyy]

^ yeah it is, i hate their questions! They all seem stupid and those concept maps at the start of every chapter review piss me off ! Lol

but thanks, i see

The worst part about the questions is that they have no answers :S...

tell me about it! You have no idea how many times i almost turned to BOB for answers, and then i remember it doesnt have answers ! Soo gay.

[stonecold]

man that was a weird q.  i get it though.

and heinmann book is the same......no answers!
they make you go on the site to get them, to which the teacher gives you a password so you can access it, which doesn't fucking work!

stupid invalid password.  what is the point of doing questions if you don't know if you are doing them right.  maybe get a biozone student book.  it has questions that correspond to virtually all textbooks, and you can buy the answer booklet with it if you want for like $10 extra.

[simonhu81292]

i guess the only reason they didn't do that is because.. answers are mostly in sentence form 
but they should direct us there :idiot2:

[cindyy]

yeah i reckon they should have an extra book with answers in it like the essential math books

(Y)

@stonecold, i have the biozone book, its fair gay! haha

[stonecold]

yeah the questions are hard, but the answer book is good.  it has the full detailed answers.  at least you can go to them as reference haha.

and we did an experiment for our first class.  i successfully fail at using a microscope. 

[cindyy]

haha oh god. microscopes are so hard to use! I always chose the dud ones, its my forte haha

and yeah, lucky you dont Or i think everyone would fail!

[stonecold]

pfft, 2 or 3 out of our 4 SAC's in each unit are based on prac work.  i am so doomed!!!!

[cindyy]

told you biol was gay
POINT PROVEN ! HAH

[stonecold]

told you biol was gay
POINT PROVEN ! HAH

biology > learning circular motion and finding the tension in a string

[vexx]

i too hate how sacs are based on pracs. i think almost all our schools bio sacs are prac writeups. they are really easy to do well on though... for everyone... which is silly.