AS bio P32 guesses

[ruler_of_the_world]

Any idea guys abt this one cause all the other variants are done except for 32 n 34 ?

 

[Nader Ihab]

confirmed and 90% sure for paper 32 that the experiment of the effect of surface area to volume ratio of potato discs on rate of osmosis
the slide will be somehow weird and will be a section in the liver but don't worry only plan diagram needed

 

[lee mee..]

confirmed and 90% sure for paper 32 that the experiment of the effect of surface area to volume ratio of potato discs on rate of osmosis
the slide will be somehow weird and will be a section in the liver but don't worry only plan diagram needed

But my teacher told that it is about yeast !!!!!!!

 

[Nader Ihab]

But my teacher told that it is about yeast !!!!!!!

no I'm Sure it's osmosis !!

 

[lee mee..]

no I'm Sure it's osmosis !!

how ??????????????

 

[white rose]

yes we wre also told abt yeast and hydrogen peroxide reaction

 

[white rose]

no I'm Sure it's osmosis !!

r u sure u r talking abt v32 and nt 34

 

[sara abdul razzaq]

yeap its yeast stuff NO OSMOSIS

 

[ruler_of_the_world]

Yea even I was told abt yeast

 

[Nader Ihab]

No it's OSMOSIS and no yeast
an experiment on yeast was just in october/november 2012 variant 5 exam and it won't be repeated !

 

[joanna omar]

No it's OSMOSIS and no yeast
an experiment on yeast was just in october/november 2012 variant 5 exam and it won't be repeated !

NO it might be yeast with s.A to volume ratio with potato dics how about Q2 any idea ?

 

[Mariam Mohamed SX132]

Doesnt meant it came in oct nov 2012 that it wont come again! Expect anything to come and be prepared from all aspects sometimes CIE places stuff in the confidential list that wont be needed! Good luck to everyone <3

 

[ruler_of_the_world]

So now basically we all r hanging in the middle of two experiments! Lets jus practise for both types n b prepared for anythn (Y)

 

[HubbaBubba]

lmao it's hydrogen peroxide and yeast.

 

[ruler_of_the_world]

But guys I heard tht the slide was of the stem.

 

[Mariam Mohamed SX132]

Hahaha ! I dont know who to believe , everyone has been saying stuff!

 

[menna1234]

yess it includes hydrogen peroxide, my teacher who prepares the lab equipment said so, and the test might be like the one in the specimen where u have to count the number of bubbles per min and see the effect of concentration on the number of bubbles, so most probably there will be serial dilution , and the slide include a dicot stem where u have to draw

 

[menna1234]

but guys does anyone knw how to draw a good dicot stem ?

 

[ruler_of_the_world]

yess it includes hydrogen peroxide, my teacher who prepares the lab equipment said so, and the test might be like the one in the specimen where u have to count the number of bubbles per min and see the effect of concentration on the number of bubbles, so most probably there will be serial dilution , and the slide include a dicot stem where u have to draw

I was told that it could probably be counting bubbles by changing temperate of the beaker or by changing concentration of H2O2

 

[menna1234]

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I was told that it could probably be counting bubbles by changing temperate of the beaker or by changing concentration of H2O2

my teacher didn't say anything about preparing water bath, only hydrogen peroxide and the equipments like in the specimen paper, so he guessed it will be the effect of different concentrations on the number of bubbles