Qualification > Queries

Biology 51

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forkasha:
i'm paper 51 too :)

CHEMMASTER6000:
quick put up the queries and we can try and solve it  ;D

MaNi_DaDuDe:

--- Quote from: chemmaster on May 13, 2010, 12:30:42 pm ---quick put up the queries and we can try and solve it  ;D

--- End quote ---

heyyy

okay I have a question..

Paper 51 nov 09 - Q2 c ii -

In the mark scheme, it says mean - 3 / 3. Where the hell did they get 3 from?!

HOUSE_MUSIC:
A solution of substance Y, thought to be a growth hormone, was made by dissolving a known
mass of Y in 10 cm3 of distilled water. This solution was added to samples from a culture of
animal cells containing 3000 cells per mm3.

unknown 101:

--- Quote from: HOUSE_MUSIC on May 13, 2010, 12:49:51 pm ---A solution of substance Y, thought to be a growth hormone, was made by dissolving a known
mass of Y in 10 cm3 of distilled water. This solution was added to samples from a culture of
animal cells containing 3000 cells per mm3.

--- End quote ---

yea but how do u calculate 3 ?????

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