IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => GCE AS & A2 Level => Queries => Topic started by: malissa on May 14, 2010, 07:40:21 am

Title: BIO p52 DONE!! so hows the paper?
Post by: malissa on May 14, 2010, 07:40:21 am

so guys how did u see the paper?
mine wasnt that good !! :(
anyone knows wat cud the A be??

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: omar_mero on May 14, 2010, 07:48:31 am

was it that hard for u???

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: Q80BOY on May 14, 2010, 07:52:58 am

Guys I'd like to remind you that no exam discussion is allowed before 24 hours has passed on the paper. Everything is being monitored by CIE, and details will be given to them if we're asked.

Thanks for your co-operation.  ;)

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: malissa on May 14, 2010, 07:54:21 am

dont worry we wont get deep into question discussion :)
just askin how did everyone do ^^

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: Q80BOY on May 14, 2010, 08:00:16 am

CIE asked us to stop any kind of discussions .. whether you're posting questions or saying question 3 was hard .. they don't want anything.

We don't want the forums closed down  ;)

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: ilmarien on May 14, 2010, 03:25:20 pm

I CAN'T wait until 24 hours is over. 11 hours to go until I get to talk about it.
My mouth is itching!!!

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: Nera_egypt on May 14, 2010, 03:37:33 pm

I don't really feel great aboyt it  :(

Hope the curve is low.

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: ilmarien on May 15, 2010, 05:50:23 am

It's over 24 hours since I took the paper, so we can talk about it, right?

How did you calculate the proportional cell number for question number 2?

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: BlackVelvet on May 15, 2010, 06:12:54 am

Quote from: ilmarien on May 15, 2010, 05:50:23 am

It's over 24 hours since I took the paper, so we can talk about it, right?

How did you calculate the proportional cell number for question number 2?

I am curious about this either!! I even forgot the paper already by now  ::)

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: ustudent on May 15, 2010, 06:45:16 am

Didn't feel bad about it.

Um...do you mean that question where you had to put in the value in the table?

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: ilmarien on May 15, 2010, 07:00:23 am

Hmm... No, I don't think so. It's the question where certain amino acids were given to 2000-3000 rat cells.
It says that on the 6th day, 5 cells were taken and the proportional cell number was calculated. How was it calculated??
I couldn't understand the question and how they did the experiment...
(By the way, are you CIE or Edexcel?)

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: pixie on May 15, 2010, 10:01:46 am

what i did was,
count the number of cells after giving the amino acid, subtract it from the original number. Then dvde the answer by the original number of cells.
kind of like . (final - initial)/initial

Title: Re: BIO p52 DONE!! so hows the paper?
Post by: ilmarien on May 15, 2010, 10:17:41 am

I had no idea what method they were using. It said that they took 5 cells and from each concentration and from each type of amino acid. Doesn't that mean that they took 5x10x2 cells? How exactly did they count the number of cells?