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

Qualification => GCE AS & A2 Level => Queries => Topic started by: MaNi_DaDuDe on May 13, 2010, 06:59:05 am

Title: Biology 51
Post by: MaNi_DaDuDe on May 13, 2010, 06:59:05 am
This Friday. -____-

Any last minute tips?

Also, am I the only one doing bio 51?!
Title: Re: Biology 51
Post by: AndrewCedric on May 13, 2010, 07:16:25 am
i am 52.. LOL ;D ;D ;D

Hey dude.. go to MSN.. i've posted some queries there as offline messages.
If you want u can put them up here.

By the way, how do you study for this paper??

It seems like the answers cant be find in the whole CIE book !!!
 :-\ :-\ :-\



Title: Re: Biology 51
Post by: ilmarien on May 13, 2010, 07:23:46 am
I'm also 52. The whole paper sounds like laboratory and investigation technique, both of which I do not possess.

Any tips?
Anyone?
Title: Re: Biology 51
Post by: AndrewCedric on May 13, 2010, 07:26:39 am
I am confident enough for planning.

 Still finding ways for analysis. Like Describe the graph/results etc.

For stats just UNDERSTAND and thats it. I memorize some of the definitions and questions of past papers.

For stats they always repeat.

ANYONE knows how to analyze data?? Like which one is anomaly, why, desribe blah blah blahhh
Title: Re: Biology 51
Post by: MaNi_DaDuDe on May 13, 2010, 08:25:24 am
:(

Okay man, let me get on a pc.

i am 52.. LOL ;D ;D ;D

Hey dude.. go to MSN.. i've posted some queries there as offline messages.
If you want u can put them up here.

By the way, how do you study for this paper??

It seems like the answers cant be find in the whole CIE book !!!
 :-\ :-\ :-\




Title: Re: Biology 51
Post by: forkasha on May 13, 2010, 12:06:16 pm
i'm paper 51 too :)
Title: Re: Biology 51
Post by: CHEMMASTER6000 on May 13, 2010, 12:30:42 pm
quick put up the queries and we can try and solve it  ;D
Title: Re: Biology 51
Post by: MaNi_DaDuDe on May 13, 2010, 12:33:29 pm
quick put up the queries and we can try and solve it  ;D

heyyy

okay I have a question..

Paper 51 nov 09 - Q2 c ii -

In the mark scheme, it says mean - 3 / 3. Where the hell did they get 3 from?!
Title: Re: Biology 51
Post by: HOUSE_MUSIC on May 13, 2010, 12:49:51 pm
A solution of substance Y, thought to be a growth hormone, was made by dissolving a known
mass of Y in 10 cm3 of distilled water. This solution was added to samples from a culture of
animal cells containing 3000 cells per mm3.
Title: Re: Biology 51
Post by: unknown 101 on May 13, 2010, 12:51:58 pm
A solution of substance Y, thought to be a growth hormone, was made by dissolving a known
mass of Y in 10 cm3 of distilled water. This solution was added to samples from a culture of
animal cells containing 3000 cells per mm3.

yea but how do u calculate 3 ?????
Title: Re: Biology 51
Post by: AndrewCedric on May 13, 2010, 12:52:55 pm
Guys, Check out the EXAMINER REPORT

MUCH MORE HELPFUL THAN THE MARKING SCHEME

 YOU GET TO KNOW WHAT WORDS THE EXAMINER WANTS YOU TO USE

THEY EMPHASIZED SIGNIFICANCE, RELIABILITY, ACCURACY AND PRECISION

THEY ALSO TELL US THE COMMON MISTAKES SO WE CAN AVOID THEM

Those are my inputs for 2mrw's papers

Good luck guys :D :D :D
Title: Re: Biology 51
Post by: MaNi_DaDuDe on May 13, 2010, 12:54:48 pm
thanks but the er has only 52 not 51 :'(

Guys, Check out the EXAMINER REPORT

MUCH MORE HELPFUL THAN THE MARKING SCHEME

 YOU GET TO KNOW WHAT WORDS THE EXAMINER WANTS YOU TO USE

THEY EMPHASIZED SIGNIFICANCE, RELIABILITY, ACCURACY AND PRECISION

THEY ALSO TELL US THE COMMON MISTAKES SO WE CAN AVOID THEM

Those are my inputs for 2mrw's papers

Good luck guys :D :D :D
Title: Re: Biology 51
Post by: AndrewCedric on May 13, 2010, 01:00:59 pm
Oh yea there is bro

http://www.xtremepapers.net/CIE/International%20A%20And%20AS%20Level/9700%20-%20Biology/9700_w09_er.pdf

Anyway dude, just concentrate on wordings and previous er :)
Title: Re: Biology 51
Post by: unknown 101 on May 13, 2010, 01:10:33 pm
Oh yea there is bro

http://www.xtremepapers.net/CIE/International%20A%20And%20AS%20Level/9700%20-%20Biology/9700_w09_er.pdf

Anyway dude, just concentrate on wordings and previous er :)

it sill doesnt give the reason how they got 3 ??????
Title: Re: Biology 51
Post by: AndrewCedric on May 13, 2010, 01:14:31 pm
Read the questions properly bro

3000 per mm^3

The table refers to THOUSANDS

so 3000= 3 thousands= 3

:)
Title: Re: Biology 51
Post by: unknown 101 on May 13, 2010, 01:17:10 pm
Read the questions properly bro

3000 per mm^3

The table refers to THOUSANDS

so 3000= 3 thousands= 3

:)

ohh sh*t, i missed that part, hahaha
Thanks  man
Title: Re: Biology 51
Post by: lhl_anecar on May 13, 2010, 06:31:30 pm
guys.. i am confuse about the error bar.. say the error, Sm is 0.2, so do i plot 0.2 above the graph and 0.2 below the graph or is it 0.1 above and 0.1 below?
Title: Re: Biology 51
Post by: MaNi_DaDuDe on May 13, 2010, 06:36:42 pm
guys.. i am confuse about the error bar.. say the error, Sm is 0.2, so do i plot 0.2 above the graph and 0.2 below the graph or is it 0.1 above and 0.1 below?

If Sm is 0.2, then you plot 0.4 on top and 0.4 below
Title: Re: Biology 51
Post by: AndrewCedric on May 14, 2010, 01:33:47 am
I am doing it in 3 hours time. Good luck all.
Title: Re: Biology 51
Post by: HOUSE_MUSIC on May 14, 2010, 09:11:46 am
how come ? isn't ur exam at 3:00 pm ??
Title: Re: Biology 51
Post by: Q80BOY on May 14, 2010, 09:25:14 am
Good luck in your exam guys :)

Just a reminder, when you return please don not discuss the paper until 24 hours have passed. We're being monitored by CIE and we will provide them with contact details if we're asked to.

We thank you for your co-operation!  ;)