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OCR F211/F212 AS Biology Retake 2016

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Original post by Zordon
Anyone else get 15mm?


Yep - giving 125 micrometres
Original post by astrostar29
1 or two people in my school said it did but the majority of us said i didnt say inside

It said one function of the membrane is to separate in the inside of the cell from the outside
Name two other function of the cell membrane on an Amoeba

I could be wrong though...


Pretty sure it was inside cells it was asking about
Reply 182
Original post by Hdb
Cheers bro, thought it was a good paper... Last question took me a while but got it in the end I think....
Did you get DABE for the heart question?


I got BADE :/
Reply 183
45 for an A?
Original post by Lannew1
For the other than mitosis question:
I put:
Checking DNA for errors
Making ribosome (cell growth etc)
Making ATP
And Apoptosis? Ive seen it previously as a marking piont?

I summed up interphase and cytokinesis
Reply 185
Original post by Bailey2j09
I'm afraid in the question it talked about specialisation by biology teacher said to talk about differentiation


undifferentiated cells specialize into specialized cells. Stem cells are undifferentiated buddy.
Original post by astrostar29
Yep - giving 125 micrometres


Yep
Original post by astrostar29
Well if you are adamant that you are correct why ask!
The bursting of an animals cell due to water uptake is just known as cell lysis

Haemolysis is the rupturing of a blood cell or an Erythrocyte meaning Haemoglobin is liberated into the surround fluid.
Hence why there is HAEM in the word

Google it if you are unsure...


Dont get cheeky fam. On every paper I've seen they accept haemolysed, so do one you got it?
Original post by A.Ka
undifferentiated cells specialize into specialized cells. Stem cells are undifferentiated buddy.


Yes- but then they differentiate - one person talked about specialisation for the question but in the question it said other than specialisation
Original post by claytonb
anyone else put:
right ventricle
septum
left ventricle
for KLM ???


that's what I put!! but I'm so unsure because I didn't know whether it was vertical or horizontal
Reply 190
Original post by elizabethRT
that's what I put!! but I'm so unsure because I didn't know whether it was vertical or horizontal

it was horizontal as it was transverse. should be right ventricle, purkyne fibre and cardiac muscle or something like that
Original post by A.Ka
it was horizontal as it was transverse. should be right ventricle, purkyne fibre and cardiac muscle or something like that


yeah i had right ventricle, septum and left ventricular wall
First q ameoba has large Sa:V ratio.
Diffusion alone is sufficient
Original post by Zordon
45 for an A?


That would be quite high if say 42
I put anaphase for the stage of mitosis. Anyone else?
For moss plant i wrote about root pressure ,forces of cohesion, adhesion, water potential and mass flow
me
Original post by maryam897
I put anaphase for the stage of mitosis. Anyone else?
Original post by maryam897
I put anaphase for the stage of mitosis. Anyone else?


Meee

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I hope it is 42 for an A
Another feature of stem cells q? I was unsure what to write

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