Qualification > Sciences
Edexcel BIOLOGY Doubts!!!!
shabie:
For CIE A2 (or AS) level students:
I was just going thru the marking schemes of Biology papers and what confuses me is that there are 4 points mentioned for a 2 mark question or sometimes 8 points mentioned for a 4-mark question. Now unlike chemistry or physics, sometimes they don't mention explicitly in their schemes that where all or some are needed so I am just wondering which one is the case? In chemistry and physics, as a general rule, you get one number for one point.
Because 8 points for a 4 point question seem quite a lot to me. They are basically all that you could write in response to that question which is usually not the case as students gets full points for writing different (but correct answers) that may or may not match the scheme.
So would anyone kindly clarify the schemes for biology? For example Question 5(c) for May/June 2010 Paper 42.
elemis:
Firstly, this is the Edexcel Biology thread. There is another CIE Bio thread for all CIE queries.
Secondly, the markscheme lists several points for that particular question. If you list any THREE of those points you receive all the marks.
That is 1 mark for 1 point. You dont need to list all 4/5 points....
~ Miss Relina ~:
In june 2004 module 1:
Q 6 (c) answer said post transitional modification ??? what is it exactly ? how it affects the no. of amino acids to be less than the no. of codons ?
Q 6 (d) why in mark scheme the word Two underlined ??? is it a must to be included in my answer if yes then why exactly two :(
plz reply as soon as possible
Thanks in advance
~ Miss Relina ~:
--- Quote from: Relina on March 28, 2011, 11:39:59 pm ---In june 2004 module 1:
Q 6 (c) answer said post transitional modification ??? what is it exactly ? how it affects the no. of amino acids to be less than the no. of codons ?
Q 6 (d) why in mark scheme the word Two underlined ??? is it a must to be included in my answer if yes then why exactly two :(
plz reply as soon as possible
Thanks in advance
--- End quote ---
plz can any one help withthat
Amelia:
--- Quote from: Relina on March 31, 2011, 12:42:21 am ---plz can any one help withthat
--- End quote ---
Can you post the questions, please? Everyone here doesnt take Edexcel Biology.
Is post translational modification even there in your syllabus?
Anyways, This video might help - http://www.youtube.com/watch?v=OtyhPEyLhvA&feature=related
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