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Biology practical

hey anyone out there doing/ have done ocr biology, i need your help
what kind of quantitative experiments could they get you to do on cell membranes around the topic of osmosis?

if any of you have already done one please help me out.

many thanks

edit: its quantitative
Been doing c/w for that all day, although not done the practial itself, I've been doing the permeability of cel membranes when disrupted by detergents (it dissolves the fatty acids in the phospholipids)

Qualitative is not using figures isn't it? As thats a little difficult

What level is this for?
Permability?
Reply 3
Avatar for Saro_656
Saro_656
10
I'm doing OCR bio y13, no assessed prac work so far though,
what kind of qualitative experiments? what kind of cells? be more specific, there's a lot you can do with cell membranes...
Reply 4
Avatar for narutoamv
narutoamv
OP
its the new ocr syllabus, i dnt know thats why im ******** myself :s-smilie:
Does it definatly need to be qualitative?
Reply 6
Avatar for narutoamv
narutoamv
OP
yep we have one quantitative, one qualitative and one evaluative test which are each an hour long and are done seperatly
hmm how about you see the effects of detergent or something else that contains enzymes that hydrolysis lipids and and do that for quantitative
I've done the quantative assessment already. You just need to know how to draw a graph really.
Reply 9
Avatar for LoveChild92
LoveChild92
I've done my practical and it was all about diffusion rate.
I had an experiment about agar jelly and seeing how temperature affects the rate of diffusion.
Reply 10
Avatar for narutoamv
narutoamv
OP
LoveChild92
I've done my practical and it was all about diffusion rate.
I had an experiment about agar jelly and seeing how temperature affects the rate of diffusion.


is your exam board ocr?
Reply 11
Avatar for Shavay
Shavay
Hi ive got a quantitative analysis on osmosis with the new specification.

anyone know what you actually got to do?

Ive got evaluative quantitative and qualitative (all 3) on monday..??
anyone done this and any useful information regarding osmosis analysis?
Thanks
Reply 12
Avatar for shazz92
shazz92
I Have No Imagination
I've done the quantative assessment already. You just need to know how to draw a graph really.


what sortaa stuff comes up?

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