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AQA BIOL1 Biology Unit 1 Exam - 16th May 2011

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Original post by animal*nature
Thought you guys may appreciate this little giggle diarrhoea is hereditary ... It runs in your jeans :tongue: sorry had to ! :smile: good luck revising xxxx
CGP... Lol

Original post by Jubilee~
anybody care to tell me how to calculate percentage decrease :///

new value-old value divided by old value times 100.
Reply 781
Original post by animal*nature
Thought you guys may appreciate this little giggle diarrhoea is hereditary ... It runs in your jeans :tongue: sorry had to ! :smile: good luck revising xxxx


Somebodys been reading there CGP revision guide. :biggrin:
Original post by ??????????????????
Only 5 marks. Not worth it. In the exam you have to time yourself.
Carrier proteins carry ions and large molecules across. Intrinsic are in extrinsic are out?. Glycoproteins are receptors.


Phospolipid-Made of hydrophillic head and 2 hydrophobic tails. It stops large molecules, ions and water soluble molecules entering. They form a bilayer

Intrinsic protein-Pass through the whole membrane
Extrinsic protein-embedded partially or on the edge of the membrane

Carrier proteins-Let large molecules, ions pass and water soluble molecules through via facillitated diffusion

Glycoproteins to act as receptors

Anything i've missed out
Original post by ??????????????????
Only 5 marks. Not worth it. In the exam you have to time yourself.
Carrier proteins carry ions and large molecules across. Intrinsic are in extrinsic are out?. Glycoproteins are receptors.


Intrinsic proteins span the whole phospholipid bi-layer while extrinsic are only on one layer.
Reply 784
Original post by ??????????????????
Astma, fibrosis, TB emphysema and probably more. Oh Lung Cancer.


1.06 but if the question requires more working out after use the 1.05643 in the calulator.


tht came in jan 2011....doubt it really. if it does :eek:
Original post by nasira372
Phospolipid-Made of hydrophillic head and 2 hydrophobic tails. It stops large molecules, ions and water soluble molecules entering. They form a bilayer

Intrinsic protein-Pass through the whole membrane
Extrinsic protein-embedded partially or on the edge of the membrane

Carrier proteins-Let large molecules, ions pass and water soluble molecules through via facillitated diffusion

Glycoproteins to act as receptors

Anything i've missed out

Not that I can think off.
Original post by hamijack
Intrinsic proteins span the whole phospholipid bi-layer while extrinsic are only on one layer.

Seems so obvious now. Can picture the CGP image again with all the different colors.
Reply 786
Original post by ??????????????????
CGP... Lol


new value-old value divided by old value times 100.



thanks ^ how does it differ from percentage increase then :/
i mean thats difference/original x1000
Original post by Rahul.S
tht came in jan 2011....doubt it really. if it does :eek:

Lazy chief examiners could appear.
Original post by Jubilee~
anybody care to tell me how to calculate percentage decrease :///


Eg. 2.5cm to 1cm

difference
divide it by original
*100

1.5/2.5 * 100 = 60% decrease
So does anyone want to write a summary of what is likely to come up tomorrow?
Original post by Jubilee~
thanks ^ how does it differ from percentage increase then :/
i mean thats difference/original x1000


Eg I have 100cm³ of water. I drink some and have 90cm³ left.

90-100/100*100 =-10
Reply 791
I am soo stressed about this exam maybe because its my first one this exam period but none of my notes are going in.. what is the general grade boundary for an A?
Reply 792
Original post by nasira372
Eg. 2.5cm to 1cm

difference
divide it by original
*100

1.5/2.5 * 100 = 60% decrease


thankyou :smile::smile::smile:
Original post by hamijack
So does anyone want to write a summary of what is likely to come up tomorrow?

Who wouldn't. Unless it's wrong:angry:
Original post by cherri3
I am soo stressed about this exam maybe because its my first one this exam period but none of my notes are going in.. what is the general grade boundary for an A?


I think they are all around 60%
Reply 794
Original post by ??????????????????
Lazy chief examiners could appear.


lol......c wt happenz. wt other exams u got...and their boards?
Reply 795
Original post by ??????????????????
Eg I have 100cm³ of water. I drink some and have 90cm³ left.

90-100/100*100 =-10


oooh and i add the minus point too?
okay got it, cheers:biggrin:
Original post by Rahul.S
lol......c wt happenz. wt other exams u got...and their boards?


Maths MEI
Chemistry AQA
Economics WJEC
You?
Original post by ??????????????????
Hopefully somebody who does chemistry here can help me back :biggrin:


I do...lol

I think im ok with it. I got 49/50 in the ISA compared with 30/50 for the biology one :frown:

If you need any help, especially with unit 1, just ask. I got a C but down to not reading the questions properly. I repeated it when someone posted it here and got over 90%
Reply 798
Original post by ??????????????????
Who wouldn't. Unless it's wrong:angry:


I think they are all around 60%


realllyyy :eek:
that's not too bad, from past papers i get 75+%
Reply 799
off to bed, goodnight guys!
READ THE Qs properly lol!

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