Edexcel a2 biology revision for the may/june 2012 exam :)

I've been trying to go over topic 8 today; but, it was so tortuous, I gave up. :shot:

Does any have any useful notes they could upload or suggest a helpful website that'd be get me through it, please? :rolleyes:

Reply 102

Abrar_Higuain

Can any suggest questions regarding UNIT 5 Scientific article

Reply 103

SimpleGirl

Original post by Abrar_Higuain

Can any suggest questions regarding UNIT 5 Scientific article

You should check out this thread:

http://www.thestudentroom.co.uk/showthread.php?t=1948344

It was made specifically for the pre release article. Quite a few people have already posted potential questions as well. :smile:

Reply 104

Hanz_a93

15

Hey can anyone explain to me what they were are trying to say on pages 60 of the SNAB book, the stuff below the heading 'DNA, lice and human evolution' and also on page 55? Both pages are so bludy confusing!

A brief summary would be nice! thankss :smile:

)

Reply 105

godknows

guys does anyone's school give them good notes for the question 7 from the scientific article?

Reply 106

kitriviolet

just wanted to ask. will we be asked to write essays for unit 5? D:

Original post by aqua05

Helloo

This is a thread for all those seating for this exam in June.

We can share revision tips, resources and do discussion of the topics we have a problem in...or anything related to this exam :smile:

Hope revision is going good for you all :smile:

Good Luck!

Reply 107

OP

Original post by kitriviolet

just wanted to ask. will we be asked to write essays for unit 5? D:

No we dont have to

Reply 108

OP

can someone help me with this question..its a unit 5 one

Explain how chemical levels in the brain may change, resulting in illnesses such as parkinsons and depression???

Reply 109

19941994

Anybody have any good revision notes for unit 5 please? :frown:

i planned to take my own notes but it's taking a lot longer than i hoped!

This was posted from The Student Room's iPhone/iPad App

Reply 110

This Honest

Original post by aqua05

can someone help me with this question..its a unit 5 one

Explain how chemical levels in the brain may change, resulting in illnesses such as parkinsons and depression???

neurones which produce dopamine are inactive
levels of dopamine decreases
transmission of nerve impulses involved in moving/coordination falls so tremors, stiffness depression may occur

low levels of serotonin triggers depression
serotonin is the neurotransmitter for controlling mood
depression may occur

something like that....

Reply 111

Lightuponlight

Is this the only thread for Biology :P

hows unit 4 going?
r u ppl practising only the new spec papers?

Reply 112

d_94

7

Original post by Lightuponlight

Is this the only thread for Biology :P

hows unit 4 going?
r u ppl practising only the new spec papers?

Yupp. I doing the new ones
My revision is going well. But I hope I can be fully prepared for once for this exam! God. I never completely ready for any exam. Haha.

Reply 113

d_94

7

Past Papers, Mark Schemes, and Revision Notes

Unit 4- The Natural Environment and Species Survival

The Unit 4.rar file includes:
Old syllabus past papers and mark schemes from 2002 June onwards.
All New syllabus past papers and mark schemes until 2011 June.
Revision cards and notes.
Link
http://www.mediafire.com/?fb0r11q2bsogo

Unit 5- Energy, Exercise and Coordination

The Unit 5.rar file includes:
Old syllabus past papers and mark schemes from 2003 Jan onwards.
All New syllabus past papers and mark schemes until 2011 June.
Revision cards and notes.
Link
http://www.mediafire.com/?6uj913ewcbbr6

Specification(Syllabus) and sample assessment material

Link
http://www.mediafire.com/?4qh9c1jyb3y56

Text Books and Revision Guides

A2-Biology-Edexcel

PDF Format
Link
http://www.mediafire.com/download.php?4nmdmah9f5q2gna

Answers
Link
http://www.mediafire.com/?542sd5zcgs8uhpw

A2 Biology-Endorsed

PDF Format
Link
http://www.mediafire.com/?sne7rqy4l8407b0

A2 Revision Guide

Link
http://www.mediafire.com/?j266uravbep9yaq

Edexcel A2 Biology Implementation and Assessment Guide for Teachers and Technicians

Link
http://www.mediafire.com/?y925l3km313joji

^^ Got that link from http://www.studentforums.biz/reference-material-83/everything-you-need-for-edexcel-a2-biology-13416/

Reply 114

OP

Original post by This Honest

neurones which produce dopamine are inactive
levels of dopamine decreases
transmission of nerve impulses involved in moving/coordination falls so tremors, stiffness depression may occur

low levels of serotonin triggers depression
serotonin is the neurotransmitter for controlling mood
depression may occur

something like that....

Thanks got it:-)

Reply 115

This Honest

http://www.edexcel.com/migrationdocuments/QP%20GCE%20Curriculum%202000/june2010-qp/6BI04_01_que_20100616.pdf

Q2bii

Can someone please explain how you calculate that and why?
I just did 3.7/24.4 times 100 to get me 15.2%
but it's 88.something%

Reply 116

OP