biology !!!

[wazzim66]

what is the hardest bio past paper (paper 1) I find them all easy any suggestions

 

[exampasser]

I'll tell you when I finish all of them. Done 3 and got 38/40 in all so far.

 

[wazzim66]

gd luk

 

[XPFMember]

many questions are repeated too!

 

[exampasser]

I've done 6 now. My lowest is still 38. And there are MANY questions which have been repeated.

Can anyone explain November 2005, Paper 1, Question 17.

Why do white blood cells pass through and not red blood cells? I thought white blood cells were bigger?

 

[XPFMember]

i dont remember the reason but i rember that in the notes it says that i guess only white blood cells go to the tissue fluid or smthng like that ,i will check my notes and tell u soon!

 

[wazzim66]

the white blood cells have amoeboid movement so they can sqeeze through and change shape in order to get through, i think so !

 

[exampasser]

That makes sense! Anyway, I'm glad I don't need to explain it because paper 3 is over!

I've done 10 past papers now and my lowest is still 38. I hope the exam tomorrow is this easy

 

[niassu]

do past papers it is the way of success

 

[Dean713]

I've done 6 now. My lowest is still 38. And there are MANY questions which have been repeated.

Can anyone explain November 2005, Paper 1, Question 17.

Why do white blood cells pass through and not red blood cells? I thought white blood cells were bigger?

red blood cells r larger and white b.c smaller so can pass throu