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Q16 Thats because cholestrol controls fluidity of the cell.
Nov 2011 v2 -----> Q16 As temperature decreases(getting colder) the membrane gets less fluid
less fluid means more the unsaturated bonds
and so unsaturated increasing and saturated decrease
june 2012 v2 ----->Q27 all of them are tiny enough to leak from blood to the lymph and all of them are present in the tissue fluid too
Nov 2012 v2-----> Q17 and Q38 q17 what do they mean by an equilibrium? means equal no of molecules on both sides
Diffusion ----> you perfume in a corner of a room at the end of the day you will be able to smell the odor all over the room
Osmosis------> add a drop of color to water in a corner after a while you will see all of the water is colourised
Facilitated diffusion---> same thing as diffusion just with bigger molecules
Active transport--> from lower to higher this is trying to oppose the equilibrium
Q38 if you remove X the primary producer will have 1 less animal feeding on it means it will be more in number
and D will have 1 less animal to feed on D will decrease now A has 1 less animal to eat from but it still has B so it will eat more of B and so A B D are decreasing
where as C increases as it gets most of the food as B is no more there
Nov 2012 v3 ----->Q39 Even idk
Nov 2013 v1/3
Q1 , 7 , 8 and 17 ? which variant?
Nov 2013 .....var 3
So.. Can u tell me how the answer for that question is 1050?
Mine is at 3when was your exam
i was done with mine by this time
Q39 in nov2012
its D check again
what variant?
Variant 1
oh i had 12
http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_s13_ms_12.pdf
No wonder ^_^
I really have a strong feeling that the ms is wrong this time.
That's exactly my feelin as well.. But there is a bit twist in the question,,which left me thinkin.
infolded to allow expansion for increasing S.A not for gaseous exchange
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