AQA AS Biology Unit 2 - 1 June 2015
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Less than two weeks for this exam, and I couldn't find a thread for it!!
I'm doing past papers and so far I have gotten A, B, B, D in the 2010 and 2011 paper
I'm doing past papers and so far I have gotten A, B, B, D in the 2010 and 2011 paper

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#3
I have not started revising for this but gonna sweat so hard over these 2 weeks!!!
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#5
(Original post by hannahw98)
can someone explain the topic of tissue fluid?
can someone explain the topic of tissue fluid?
At the venule end, the water potential is lower in the venule that the tissue fluid, so plasma moves into the venule.
Hope this helps

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#6
Before you say anything, no I'm not sponsored by this guy or anything, but if you search Mr Pollock biology on youtube, there's a good playlist for unit 2, with most of the topics covered
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#7
(Original post by CMooreFalcons)
At the arteriole end, there is a high hydrostatic pressure, forcing plasma out of the capillaries. The RBCs, WBCs and platelets remain in the capillary because they are too large. This results in a more negative water potential in the capillary.
At the venule end, the water potential is lower in the venule that the tissue fluid, so plasma moves into the venule.
Hope this helps
At the arteriole end, there is a high hydrostatic pressure, forcing plasma out of the capillaries. The RBCs, WBCs and platelets remain in the capillary because they are too large. This results in a more negative water potential in the capillary.
At the venule end, the water potential is lower in the venule that the tissue fluid, so plasma moves into the venule.
Hope this helps

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#10
Does anyone know of/have any exam style questions that aren't past papers? Or maybe some international papers? I'm struggling with the application but can only really find the past papers from aqa
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(Original post by edward090)
can someone haemoglobin and the oxygen dissocian curves and variations?????
can someone haemoglobin and the oxygen dissocian curves and variations?????

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#12
can someone give a detailed description/explanation of crossing over and independent assortment
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#13
(Original post by edward090)
can someone give a detailed description/explanation of crossing over and independent assortment
can someone give a detailed description/explanation of crossing over and independent assortment
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#14
(Original post by wrfrew)
Does anyone know of/have any exam style questions that aren't past papers? Or maybe some international papers? I'm struggling with the application but can only really find the past papers from aqa
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Does anyone know of/have any exam style questions that aren't past papers? Or maybe some international papers? I'm struggling with the application but can only really find the past papers from aqa
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Posted from TSR Mobile
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#16
(Original post by flylikeafly)
does anyone know what topics are likey to come up
does anyone know what topics are likey to come up
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After that unit 1 exam,it's really hard robust.I can now expect more data questions to come up.
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#17
So I think I got a Low B in unit 1
And an A in my empa
Do you think it's possible to still get an overall A if I try to get an A in unit 2?
Thanks
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And an A in my empa
Do you think it's possible to still get an overall A if I try to get an A in unit 2?
Thanks
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#18
(Original post by Bloom77)
So I think I got a Low B in unit 1
And an A in my empa
Do you think it's possible to still get an overall A if I try to get an A in unit 2?
Thanks
Posted from TSR Mobile
So I think I got a Low B in unit 1
And an A in my empa
Do you think it's possible to still get an overall A if I try to get an A in unit 2?
Thanks
Posted from TSR Mobile
Posted from TSR Mobile
Unit 2 is 46.7 percent.If you Do well in unit 2 you can easily get an A.
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#19
(Original post by Kadak)
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Unit 2 is 46.7 percent.If you Do well in unit 2 you can easily get an A.
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Unit 2 is 46.7 percent.If you Do well in unit 2 you can easily get an A.

I'm gonna work my socks off
So
1) do all the past papers from January 2009
2) do specimen paper
3) do all the unit 2 questions for every topic from physicsandmathstutor
Anything else?
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#20
(Original post by Bloom77)
Thank you
I'm gonna work my socks off
So
1) do all the past papers from January 2009
2) do specimen paper
3) do all the unit 2 questions for every topic from physicsandmathstutor
Anything else?
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Thank you

I'm gonna work my socks off
So
1) do all the past papers from January 2009
2) do specimen paper
3) do all the unit 2 questions for every topic from physicsandmathstutor
Anything else?
Posted from TSR Mobile
Watching youtube videos also helps.On the day of the unit 1 exam,by a chance of luck,that morning I was watching youtube video of a baby with whooping cough.
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