A level Biology: Post your doubts here!

[KurayamiKimmi]

http://www.xtremepapers.com/papers/...nd AS Level/Biology (9700)/9700_s09_qp_32.pdf
can anyone show how they would do question a(i) pretty please? ^^

 

[PhoenixAsh12]

Can someone please help me with O/N 08 32 question 2 part a)ii)
http://www.xtremepapers.com/papers/...nd AS Level/Biology (9700)/9700_w08_qp_32.pdf

 

[KurayamiKimmi]

Hey, does anyone know which years are the most important to study for practical 32, I can't study everything because I also have a maths exam.
Thanks!

although its not advisable to skip stuff :
do the recent years M/J 10 11,09 and o/n 101109 try doing as many variants as possible
go through dilutions and food tests
scan through any examples of plan diagrams that you may have

 

[KurayamiKimmi]

Can someone please help me with O/N 08 32 question 2 part a)ii)
http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Biology (9700)/9700_w08_qp_32.pdf

prepare the space in a suitable form (table-venn diagram etc)
make four columns -one for feature and three for observations from each slide
think of all the possible differences you can see between the cells -these are usually the likes of shape , size etc
write down at least 5

 

[PhoenixAsh12]

prepare the space in a suitable form (table-venn diagram etc)
make four columns -one for feature and three for observations from each slide
think of all the possible differences you can see between the cells -these are usually the likes of shape , size etc
write down at least 5

Thanks but I think you read the wrong question... It's the one about the stage micrometre

 

[PhoenixAsh12]

although its not advisable to skip stuff :
do the recent years M/J 10 11,09 and o/n 101109 try doing as many variants as possible
go through dilutions and food tests
scan through any examples of plan diagrams that you may have

Thank you! Quick question about food test...

For proteins, we add potassium hydroxide and cooper sulphate?
For non-reducing sugars, is it add HCL then heat, cool, add NAHCO3 and benedicts solution then heat again?

Thank you!

 

[KurayamiKimmi]

Thank you! Quick question about food test...

For proteins, we add potassium hydroxide and cooper sulphate?
For non-reducing sugars, is it add HCL then heat, cool, add NAHCO3 and benedicts solution then heat again?

Thank you!

yes and yes .

 

[geek101]

can anyone please post the steps for the calculation of the actual size using the stage micrometer

 

[KurayamiKimmi]

Thanks but I think you read the wrong question... It's the one about the stage micrometre

oh sorry
as for the micrometer question --im having trouble with those myself

 

[KurayamiKimmi]

i need help with dilutions -can anyone please help
(fourth time i'm asking )

 

[confused123]

i need help with dilutions -can anyone please help
(fourth time i'm asking )

aww don't cry :| here is link for revision guide which tells you in detail how to carry out dilutions. best of luck
http://www.xtremepapers.com/community/threads/biology-revision-guide-by-mary-jones.13213/

 

[KurayamiKimmi]

aww don't cry :| here is link for revision guide which tells you in detail how to carry out dilutions. best of luck
http://www.xtremepapers.com/community/threads/biology-revision-guide-by-mary-jones.13213/

thanks!! ^_^

 

[sagystu]

COULD SOME ONE PLEASE DRAW ME A PLAN DIAGRAM OF BRONCHUS & BRONCIOLE

thanks ... v imp. please

 

[MuammarW]

asalamu alaikum....
here r some predicted question fr da AS prctical paper...
1. osmosis on onion cell
2. thy hav provided us wth egg n oil bt no reagents... any gues on wt might cum.???? pls let us knw....
3.cros section of da lungs....

guys if ul knw abt anythn pls let us knw!!!

wasalam!!!!

which paper varient is this ?im doing 32

 

[xxfarhaxx]

which paper varient is this ?im doing 32

its fr 33

 

[MuammarW]

its fr 33

its probably unlikely that they would bring the same stuff in the other varient right?

 

[xxfarhaxx]

its probably unlikely that they would bring the same stuff in the other varient right?

ur yet to do da ppr i gues!!..i dnt knw abt tat!!!

 

[Idolfanatic95]

its probably unlikely that they would bring the same stuff in the other varient right?

Variant 33 didn't get any ques related to lungs so there's a probability for 34.

 

[confused123]

http://www.xtremepapers.com/CIE/International A And AS Level/9700 - Biology/9700_s10_qp_33.pdf
q. 1) d i) can u draw the table and all the headings required. and d iii part as well, how to modify this investigation to find the effect of temperature on the rate of diffusion.......

 

[smartangel]

assalamoalaikum wr wb!

may be this might help:

assalamoalaikum. i just wanted to know if you have other notes like these for other chapters? it"ll be of great help if you post them up or give me the link if you"ve already done so! thanks