Poll: What did you think of the Biology AQA test 2015 AS?
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Coffee&Doughnuts
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#1
Report Thread starter 5 years ago
#1
Yes I am ranting. Why? Because I spent the last year reavising and learning a whole lot of monoclonal enzyme poop which did not even come.
I am including major topics which only recieved 2 or 3 marks of recgnistion:


Heart disease... they didn't do as much on it
Heart Structure... only a little bit came up
Immunity/
Vaccinations, -
B/T Cells
Phagocytosis
(I refuse to count the monoclonal antibodies as vaccinations)
Proteins and its Structure
Cardiac Cycle
Lung- Lungs disease (that one mark question on asthma doesn't count)
Exchange of gases in the lungs
Mechanism of breathing (In 99% of PP there is always a contraction diaphragm Q
Cholera
Diffusion
Oral rehydration therapy
Defence mechanisms
Prokryotic cells vs Eukroyatic Cells
Enzyme Action and factors affecting it

They missed at all these major topics mostly!!! That I dont think is fair at alll
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MAK483
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#2
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#2
(Original post by Coffee&Doughnuts)
Yes I am ranting. Why? Because I spent the last year reavising and learning a whole lot of monoclonal enzyme poop which did not even come.
I am including major topics which only recieved 2 or 3 marks of recgnistion:


Heart disease... they didn't do as much on it
Heart Structure... only a little bit came up
Immunity/
Vaccinations, -
B/T Cells
Phagocytosis
(I refuse to count the monoclonal antibodies as vaccinations)
Proteins and its Structure
Cardiac Cycle
Lung- Lungs disease (that one mark question on asthma doesn't count)
Exchange of gases in the lungs
Mechanism of breathing (In 99% of PP there is always a contraction diaphragm Q
Cholera
Diffusion
Oral rehydration therapy
Defence mechanisms
Prokryotic cells vs Eukroyatic Cells
Enzyme Action and factors affecting it

They missed at all these major topics mostly!!! That I dont think is fair at alll
Dont worry i feel your pain too. That paper was a slap in the face
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lerjj
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#3
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#3
I don't do your board, but what did come up???

That sounds like almost a whole unit's worth of stuff you've just listed.
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kat.loss17
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#4
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#4
What did you all get for the TEM question
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kat.loss17
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#5
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#5
Also whay about the magnification calculation?
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Jakz007
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#6
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#6
(Original post by kat.loss17)
Also whay about the magnification calculation?
i got 2000 for magnification

for TEM you had to say how it works- so something along the lines of electrons being fired at specimen, absorbs the electrons. some areas may appear darker due to absorbing more electrons.

limitations- vacuum, non living, specimen needs to be thin, expensive (?), artefacts when staining, no colour image produced
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kat.loss17
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#7
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#7
(Original post by Jakz007)
i got 2000 for magnification

for TEM you had to say how it works- so something along the lines of electrons being fired at specimen, absorbs the electrons. some areas may appear darker due to absorbing more electrons.

limitations- vacuum, non living, specimen needs to be thin, expensive (?), artefacts when staining, no colour image produced
Okay thank you 😀
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dis0rder
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#8
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#8
how are people getting 2000 for magnification? i measured the distance which was either 62 or 67 mm, then x1000 to convert to microns and divided the measurement by 5 microns to get something like 12400?
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De4thTh3K1d
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#9
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#9
Seriously, there was minimal actual biology in the paper
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Jakz007
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#10
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#10
(Original post by dis0rder)
how are people getting 2000 for magnification? i measured the distance which was either 62 or 67 mm, then x1000 to convert to microns and divided the measurement by 5 microns to get something like 12400?
10mm (you had to measure bar given) divided by 5 micrometers then times by 1000
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dis0rder
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#11
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#11
(Original post by Jakz007)
10mm (you had to measure bar given) divided by 5 micrometers then times by 1000
ooooooh **** thats another two marks, i took the bar as a reference
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Ezme39
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#12
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#12
(Original post by lerjj)
I don't do your board, but what did come up???

That sounds like almost a whole unit's worth of stuff you've just listed.
A lot of application and interpreting data! we had enzymes, applied heart disease/ LDLs and vaccinations, with microscopes and cell fractionation
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Sciencebuddy12
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#13
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#13
Could you post a Unofficial AQA GCSE B1 Markcheme please
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AshcaanH
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#14
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#14
(Original post by dis0rder)
ooooooh **** thats another two marks, i took the bar as a reference
Thing is, I calculated it the correct way (and got 2000x) then at the end I double checked by doing it the way by measuring the cell and I still got 2000x. I think you just did it wrong, unfortunately.
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dis0rder
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#15
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#15
(Original post by AshcaanH)
Thing is, I calculated it the correct way (and got 2000x) then at the end I double checked by doing it the way by measuring the cell and I still got 2000x. I think you just did it wrong, unfortunately.
i'm hoping i'll get some marks for the working out at least. ugh that exam went so terribly bad
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AshcaanH
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#16
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#16
(Original post by dis0rder)
i'm hoping i'll get some marks for the working out at least. ugh that exam went so terribly bad
Eh, don't worry about it.
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