# Edexcel 6BIO7/01 (International Unit 3B) ~ 7th May 2013 ~ AS Biology watch

• View Poll Results: Which practical do you expect? ~Biology unit 3 May 7~
Daphnia (effect of caffeine on heart beat rate)
13.51%
Test for vitamin C
16.22%
Membrane permeability (Beetroot)
24.32%
Enzyme concentration
16.22%
Mitosis (Onion root cell)
75.68%
Tissue culture
10.81%
Tensile strength of plant fibres
10.81%
Mineral deficiencies
10.81%
Antimicrobial properties of plants
21.62%

1. thanks ! how we write the answer like auther name,source,publisher ??
2. where can i get exminer reports online ??
3. (Original post by NilFBosh)
What were the values given in the dependent variable?
Its better to use 20, 40, 60....
or 10, 20, 30
But I need to know the values for the y axis.
For that graph the max y value is 230 - 240 or something so its not possible to take 20, 40, 60... or 10, 20, 30...

The best way to take up all the space is to use 30, 60, 90...

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4. (Original post by elfajare)
thanks ! how we write the answer like auther name,source,publisher ??
Author name, date/year, source (book, website...), publisher.

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5. (Original post by NilFBosh)
What were the values given in the dependent variable?
Its better to use 20, 40, 60....
or 10, 20, 30
But I need to know the values for the y axis.
heres the table
6. (Original post by Relaxedexams)
Author name, date/year, source (book, website...), publisher.

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publisher u mean where it was published and the name of the publisher or BOTH?
7. (Original post by thextractor007)
A mathematical Model can be wrong As it might not include other factor which are varying.
there is a limited data on which it is based.
thanksmakes sense
8. (Original post by Daniel Atieh)
publisher u mean where it was published and the name of the publisher or BOTH?
Publisher as in publisher info. If they give only name then name goes there. If they give name and place, name first, then place.

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9. who knows how to draw a genetic diagram what details we should put in it genotype phenotype and gametes only ??? june 2009 q2
10. omg i hate that question about implications..any help/suggestions/explanations
+
Heres one of the most hated questions by me lol..plz any one make this topic clear to me please, I ll be so thankful!
11. for the observing mitosis one, what are the controlled variables?
12. for the observing mitosis one, what are the controlled variables? i need this too my notes says no varible to be controlled
13. guys can we answ in the form ponts. ex. *this is a model. or as a small paragraph ????
14. Could someone help with plotting a graph for this data?
(Date against number of tests)

It's from June 2009, 6BI07, question 2 (b)(ii)

I can't find a suitable scale for the y-axis; the mark scheme doesn't give any details about the scale either.
Attached Images
15. 6BI07_01_que_20090514.pdf (254.4 KB, 94 views)
16. any more tips to Part 1: Experiment. I can't get higher than 14 marks, always lose some marks somewhere. Markschemes are so specific, you can have the right idea but write around the topic kind of...

For Part 1 and 2 to assure some marks at least?
17. (Original post by SKK94)
Could someone help with plotting a graph for this data?
(Date against number of tests)

It's from June 2009, 6BI07, question 2 (b)(ii)

I can't find a suitable scale for the y-axis; the mark scheme doesn't give any details about the scale either.
ok i ll try solving it nw!
18. (Original post by elfajare)
guys can we answ in the form ponts. ex. *this is a model. or as a small paragraph ????
Paragraphs

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19. SKK94 heres it .... not sure about it but this is my try &
and NilFBosh I hv posted the table for that bar chart .please check it and also check for me this one that i solved, I can improve it by adding a break in the y axis (but not from the start), but am not sure if it's possible to do so??
20. (Original post by NilFBosh)
Paragraphs

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r u sure ?????? because if u check the examiner reports they gain full marks and there answers are written as bullet points ?????????????????????????
21. (Original post by Daniel Atieh)
SKK94 heres it .... not sure about it but this is my try &
and NilFBosh I hv posted the table for that bar chart .please check it and also check for me this one that i solved, I can improve it by adding a break in the y axis (but not from the start), but am not sure if it's possible to do so??
i think that this is soo wrong !!! any check the examiner report i i dont have it if anyone have it pease give it to us

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