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Matt_dragon
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#101
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#101
(Original post by FutureMedic1009)
How's everyone finding this unit so far? I find it to be much more enjoyable than the first one


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Same! I love chapter 10

and 11
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Simran Mars Foster
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#102
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#102
DOES ANYONE HAVE THE JAN 2013 UNIT BIO PAPER/MARK SCHEME!

Please!
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eilish1903
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#103
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#103
The january markscheme is on the aqa website.
Has anyone done the haemoglobin dissociation curve and the Bohr effect yet??
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Jimmy20002012
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#104
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#104
Has anyone else finished the whole syllabus already?


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Simran Mars Foster
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#105
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#105
(Original post by Jimmy20002012)
Has anyone else finished the whole syllabus already?


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Yes pretty much!
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chelseafan
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#106
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#106
(Original post by Simran Mars Foster)
Yes pretty much!
Wow that was quick. Anyway how did Biol1 go?
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chelseafan
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#107
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#107
(Original post by Jimmy20002012)
Has anyone else finished the whole syllabus already?


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Not yet. How far have you got? Btw what did you get in BIOL1?
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Simran Mars Foster
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#108
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#108
(Original post by chelseafan)
Wow that was quick. Anyway how did Biol1 go?
I know which is good in a way.

Bio1 went horrific..:emo: so resit for me! What about you?
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chelseafan
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#109
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#109
(Original post by Simran Mars Foster)
I know which is good in a way.

Bio1 went horrific..:emo: so resit for me! What about you?
Got a D. Definitely retaking it.

Good luck anyways.
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olivef
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#110
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#110
If someone could explain meiosis to me it would be really helpful!
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myah_94
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#111
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#111
(Original post by liquid394)
I'm not sure If this is correct as I am not sure whether I remember it, but I will have a go . Bohr Effect describes That the less Carbon Dioxide here is in the blood the haemoglobin has a stronger affinity for Oxygen and so Oxygen is not released. Then when Carbon dioxide Partial pressures are high the haemoglobin is more likely to release the Oxygen as it has less affinity for Oxygen.

(then You give the answer-after you have read it and tell me how many marks I would of got out of a certain number of marks, then you answer my question)


Describe the sub-units that make up the Nucleotide structure. (To include the names of the 4 bases) (6 marks)
Goood 2/2 marks...don't think the first is relevant, it's just about the co2 rise
There are 3 sub-units, there is a 5 carbon deoxyribose sugar, an organic base and a phosphate group. The bases are in two's, each base is complementary to the one it bonds with. Adenine pairs with Thymine, Cytosine pairs with Guanine. 2 hydrogen bonds form between A and T, and 3 form between C and G. These bases also form the triplet code, 3 bases code for one amino acid. Single rings are T and C, double ring bases are G and A.

Why is it advantageous for the oxygen dissociation curve being more to the right for a mouse? Explain. (3 marks)
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gingerandice
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#112
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#112
jan 2013 paper ?

x
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Jimmy20002012
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#113
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#113
(Original post by chelseafan)
Not yet. How far have you got? Btw what did you get in BIOL1?
We have finished the syllabus! Got a D somehow in biol1, denials resiting it, so disappointed with the result in biology after working my ass off, guess it was just exam technique. What about you what did you get?


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F1's Finest
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#114
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#114
I'm glad I got biol2 out of the way!

My advice to you guys is to try and do as well as you can on this module as it is easier to score high marks as it holds more weight than Unit 1.

This module is nice anyway


(Original post by gingerandice)
jan 2013 paper ?

x
I don't think someone has it, it definitely won't be on the AQA site.

Ask your teacher? I think teachers can get early access to them.
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Simran Mars Foster
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#115
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#115
I have see the link for the paper on TSR but won't be able to find it!
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chelseafan
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#116
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#116
(Original post by Jimmy20002012)
We have finished the syllabus! Got a D somehow in biol1, denials resiting it, so disappointed with the result in biology after working my ass off, guess it was just exam technique. What about you what did you get?


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Same as you.
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toolyb
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#117
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#117
(Original post by sahdiya)
Hi I'm stuck on what I need to know about haemoglobin


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You need to know:
1) Their structure (primary, secondary, tertiary, quaternary)
2) The role of haemoglobin
3) Why there are different types of haemoglobin and be able to talk about them
4) Oxygen affinity, unloading and loading
5) Oxygen dissociation curves

Have you got the Nelson Thornes text book?
Hope this helps
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toolyb
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#118
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#118
(Original post by Shinusuke_Akki)
What results did people get? I got a B in biology, am really glad but will still try to retake see if I can an A ^.^ Also got an A in Maths C1 (Yay, one I won't have to retake!) and a C in Physics G481 (darn really hated this unit, was really hoping I wouldn't have to retake it). What other subjects and results did you all get?
Well done, a B is really good! The results weren't great for biology this year :/
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toolyb
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#119
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#119
(Original post by Matbunny)
I revised from the very beginning of the course I read from revision books, took notes and most importantly, practise papers! I literally did all the practise papers for bio1. It's a good way to know what kind if answers the individual exam board is looking for. I got a B, literally was 1 raw mark off an A!


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Only 13.1% of people got an A in that exam, so that works out at about 487 people out of 3717, so you did really well! It's possible that the grade boundaries will be lower in the summer so that there isn't such a big drop in grades next year with no January exams, so I'm sure you'll be able to make the points up in the summer
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Sophie1994
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#120
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#120
Omg is everyone almost finished? I still have 4 topics left with my school


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