OCR Biology A as practicals and their limitations

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medicapplicant
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#1
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#1
Since I have seen this come up a lot on specimen papers for depth I thought we could all post anything about the practicals and their limitations I don't know about you but my school didn't manage to finish all practicals and their write ups.
So if you have anything post below
THIS IS NOT A YEAR 9 THREAD THAT WAS A MISTAKE 😐

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medicapplicant
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medicapplicant
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medicapplicant
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medicapplicant
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Size:  146.2 KBdoes anyone have any limitations for this practical


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medicapplicant
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I noticed it says year 9 don't know how that happened and don't know how to change it
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username1631419
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(Original post by medicapplicant)
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Thanks for posting this stuff
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4nonymous
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Nice stuff!!!
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4nonymous
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(Original post by medicapplicant)
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I haven't done this one
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medicapplicant
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(Original post by Littleonezz)
Thanks for posting this stuff
No problem


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medicapplicant
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(Original post by 4nonymous)
I haven't done this one
Oh ok if you have any more limitations for any others practicals that I haven't mentioned please post below 🙂
Thanks


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candyyfloss
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Would anyone like to post the notes they have on this thread?

http://www.thestudentroom.co.uk/show....php?t=4142137
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Supergirl1659
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(Original post by medicapplicant)
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How did you calculate the rate for this experiment- do they want the rate for each concentration?
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2Djelly
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I found the gradients of my lines of best fits using the formula change in y / change in x. For this to work you have to have volume of gas on the y axis and time on the x axis. I plotted all the concentrations on the same graph and found the gradient of each line (and therefore the rate of reaction for each gradient)
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2D-jelly
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(Original post by 2Djelly)
I found the gradients of my lines of best fits using the formula change in y / change in x. For this to work you have to have volume of gas on the y axis and time on the x axis. I plotted all the concentrations on the same graph and found the gradient of each line (and therefore the rate of reaction for each gradient)
This is for substrate concentration, I haven’t done the enzyme concentration pag yet but I assume it’s similar
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chibibotto
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For PAG 6 (chromatography of photopigments) - how should I lay out my table?
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Lemon 24
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(Original post by medicapplicant)
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ty
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