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OCR Biology F212 Revision [3rd June 2013] (Now Closed)

Just done the june 2010 past paper, got 97/100. i hope monday's exam is going to be similar to that paper *fingers crossed* :tongue:

Has anyone else done this paper? any feedback ?

Reply 521

Ché.

Original post by ThatScienceGuy

Just done the june 2010 past paper, got 97/100. i hope monday's exam is going to be similar to that paper *fingers crossed* :tongue:

Has anyone else done this paper? any feedback ?

Well done!
I haven't done this paper, yet.
I have only done the most recents and scored and average of 97/100 too!
I will do this one, tomorrow if I can get my hands on it...
Any reoccurring topics spotted?
:biggrin:

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Reply 522

ThatScienceGuy

Original post by Ché.

Well done!
I haven't done this paper, yet.
I have only done the most recents and scored and average of 97/100 too!
I will do this one, tomorrow if I can get my hands on it...
Any reoccurring topics spotted?
:biggrin:

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Enzyme and protein structure seems to always pop up, tertiary structure etc...
ermmmmm vaccination and immune response also seems to be recurring often

Reply 523

Ché.

Original post by ThatScienceGuy

Enzyme and protein structure seems to always pop up, tertiary structure etc...
ermmmmm vaccination and immune response also seems to be recurring often

COOL!
Thanks...
:smile:

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Reply 524

Dejir

What technique do you use to answer 'suggest' questions.

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Reply 525

trrr

13

Describe the structure and mode of action of T lymphocytes and B lymphocytes, including the significance of cell signalling and the role of memory cells.

Only need helpon this and im well set for the exam

Reply 526

niceguy95

14

Original post by trrr

Describe the structure and mode of action of T lymphocytes and B lymphocytes, including the significance of cell signalling and the role of memory cells.

Only need helpon this and im well set for the exam

T-lymphocytes are white blood cells with receptors on surface. Antigens on the surface of the phagocyte behind to receptors due to their complementary shape. T- lymphocyte Is now activated (Clonal selection). Clonal expansion occurs whereby lones are produced and these differentiaite into different types of t - lymphocytes. T- helper cells produce substances which activate B-Lymphocyes, t killer cells and t memory cells.

B- lymphocytes are white blood cells with antibodies on their surface . They bind to antigens as the are complementary and antibodies ave a specific variable region. This brings about b-lymphocyte activation (Clonal selection). This cell then divides my mitosis into plasma cells and memory cells

Plasma cells are clones of b lymphocytes and they produce antibodies which are complementary in shape to antigens on pathogen. Antibodies bind to antigens framing antigen-antibody complexes which signals the immune system to destroy the pathogen

My attempt

Reply 527

kimsiclez

12

Original post by R1C3W1N3

Any help with the immune response, please?

And I've gone through every exam, labelling all the questions about their subject and unit.
So you can almost "predict" what might come up in Mondays exam

This is great, thank you! What do the different colours mean?

What do you usually need in this exam to get an A?

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Reply 530

niceguy95

14

Original post by lauren1brown

What do you usually need in this exam to get an A?

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It varies,

If its a very hard paper an A s usually 64-68

if it relatively straightforward, then it's 74-78

Reply 531

Moon1ight

15

Type of nutrition for a prokaryote ?

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Reply 532

nevarsan

Suggest why many species do not breed successfully in captivity (3)

Reply 533

AishaTara

14

Original post by nevarsan

Suggest why many species do not breed successfully in captivity (3)

1. interbreeding
2. not in natural environment so often are under stress
3. no idea

Reply 534

AishaTara

14

anyone know what full UMS usually is?

Reply 535

nevarsan

Original post by AishaTara

1. interbreeding
2. not in natural environment so often are under stress
3. no idea

Yeah and the third one is change in dietary requirements

Reply 536

nevarsan

Suggest why rhinos are endangered (2

Original post by AishaTara

anyone know what full UMS usually is?

Apparently...
I found out yesterday that it is usually 86/100 for the full UMS mark conversion.
I am not totally sure but that's what I have been hearing... :biggrin:

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(edited 10 years ago)

Reply 539

AishaTara

14

OCR Biology F212 Revision [3rd June 2013] (Now Closed)

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