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Official AQA Biology Unit 3 14th May 2013 NEW SPEC

Quadrat squares and %? How did you find the last 2 questions btw,along with the the immobilised fructose questions

I got 7 for quadrat squares and 28%.. Although the bit about how I calculated the squares baffled me.. I just used the key counted :|

For the immobilised one I think I said its better because enzyme and product don't need to be mixed or separated after reaction.. Not too sure about that though..

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Reply 941

lucy1996

2

Original post by Aspire101

I got 7 for quadrat squares and 28%.. Although the bit about how I calculated the squares baffled me.. I just used the key counted :|

For the immobilised one I think I said its better because enzyme and product don't need to be mixed or separated after reaction.. Not too sure about that though..

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i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/

Reply 942

Pistol 33

8

Original post by lucy1996

i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/[/QU
What did you put on the HEXA one, where it says why didn't the boy get the genetic disorder.

Reply 943

grammar12

OP

5

Original post by bwr19

Hydrochloric Acid, Bile?

Original post by Aspire101

6 marker wasn't too bad.. I wrote about lipase being produced in the pancreas/ small intestine, bile providing alkaline conditions and emulsifying the lipids so there is a greater surface area for lipase to act on..

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Original post by lucy1996

did a lot worse on B2! for the fats one, what other chemicals are involved?? and i wrote a little about proteins being made in the ribosomes?!?

Original post by hs.wong96

aha i put 6.5 for the squares and 26%...

Original post by Pistol 33

Quadrat squares and %? How did you find the last 2 questions btw,along with the the immobilised fructose questions

Original post by Pistol 33

I didn't write the last one. What did you put for the quadrat number of squares? I put 4 like an idiot :angry:

Original post by lucy1996

originally put 6.5, changed it to 7. presume they'll except 6-7?

Original post by Pistol 33

How did you get 6.5-7? im baffled

Please keep B2 dicussion to the official thread to avoid confusion Thanks! :smile:

http://www.thestudentroom.co.uk/showthread.php?t=2350733

Reply 944

grammar12

OP

5

Original post by lucy1996

i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/

[QUOTE="33;42610113" Pistol="Pistol"]

Original post by lucy1996

i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/[/QU
What did you put on the HEXA one, where it says why didn't the boy get the genetic disorder.

Original post by Aspire101

I got 7 for quadrat squares and 28%.. Although the bit about how I calculated the squares baffled me.. I just used the key counted :|

For the immobilised one I think I said its better because enzyme and product don't need to be mixed or separated after reaction.. Not too sure about that though..

Posted from TSR Mobile

Original post by Pistol 33

For the HEXA question, what did u put when it said explain why the boy didn't get the genetic disorder or something

Please keep B2 dicussion to the official thread to avoid confusion Thanks!
http://www.thestudentroom.co.uk/show....php?t=2350733

Reply 945

Aspire101

Original post by lucy1996

i put that, and then something about different densities would mean the enzyme would separate and therefore not catalyse all reactions? dunno though.. and i HATED the question on plants towards the end :'/

Hmm yeah the plants one was quite confusing.. I think I said they were similar in appearance for the same species bit.. And the fact that they could interbreed. Did you get 12 for the number of chromosomes in the offspring?

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Reply 946

Jennym5

For the 6 mark we only had to talk about factory farming didn't we as it said explain the advantages and disadvantages of the method?

Reply 947

BI0

7

This is B3 discussion why are people talking about B2?

Yeah Jenny, it did.

Reply 948

Captain Anonymous

14

i thought the exam was good :smile:

, a few tough questions... I think that i got somewhere between 47-50.

Reply 949

Alex Wonderkid

can someone remind me please what the question on mass decrease was - I got 100???

Reply 950

Captain Anonymous

14

from my perspective i'm going on the basis of :

46 A*
37 A
29 B
21 C

Reply 951

NightStrider

Original post by Captain Anonymous

i thought the exam was good :smile:

, a few tough questions... I think that i got somewhere between 47-50.

It thought it was okay - I think I got somewhere around that too.

Reply 952

ahmed15

Original post by Jennym5

For the 6 mark we only had to talk about factory farming didn't we as it said explain the advantages and disadvantages of the method?

Yh I just went on about reducing movement and heating reducing biomass lost. Takes up less land which could be used for farming. Less movement, cheaper for suppliers: cheaper for consumers. Con- Animal cruelty. Diseases because close together. Anti-biotics pass on to humans, Resistant strains developed