AQA Variety of Living Organisms Resit?

Nope that curve was correct :biggrin:

the idea is that if it has a lower affinity for oxygen then it will dissociate more readily at respiring tissues so those at higher altitudes get sufficient O2 and dont have to respire anaerobically. I went for SA:V for the heat question. the equation is mag = image/actual. optical microscope sample has to be thin so light can pass through so it can be examined. and i guessed logarithmic, i think its to do with it being the only logical way to fit all the data on a reasonably sized graph

Reply 63

Vamp1reWeekend

woo i got that,
that's 2 marks out of 85..

OMG I LOVE YOU. My friend told me she got something like 28000 and I was like HUH?!

At least now I know someone got the same as me :biggrin:

Reply 64

diesegeld

was the blood cells one just because there is more haemoglobin?

Reply 65

Haruhi

I wrote plasma first but then added ''blood'' just incase :P
I might be wrong, don't count on it.

Or if I am right, you might get a mark if they're generous.

The answer is just Plasma as the diagram also showed red blood cells but pointed to the liquid between them :biggrin:

blood plasma is a bit iffy because the mark scheme will probably say Plasma and no mark for blood, so it depends on the examiner :frown:

Reply 66

diesegeld

was the blood cells one just because there is more haemoglobin?

thats what i thought, dunno what the 2nd mark would be though ;s

Reply 67

Haruhi

OMG I LOVE YOU. My friend told me she got something like 28000 and I was like HUH?!

At least now I know someone got the same as me :biggrin:

hi5!! ;D

Reply 68

Artymess

Nope that curve was correct :biggrin:

the idea is that if it has a lower affinity for oxygen then it will dissociate more readily at respiring tissues so those at higher altitudes get sufficient O2 and dont have to respire anaerobically. I went for SA:V for the heat question. the equation is mag = image/actual. optical microscope sample has to be thin so light can pass through so it can be examined. and i guessed logarithmic, i think its to do with it being the only logical way to fit all the data on a reasonably sized graph

Dang... so its correct afterall....
I am ever so glad that I wrote something infavour of that graph at the last minute... eventhough I disagreed.

Reply 69

Vamp1reWeekend

hi5!! ;D

oh yeaH~!

Reply 70

Haruhi

I did that and ended up with something like 242???? Micrometeres is x10-3 right?!

i got 2400, micrometres is 10^-6, millimetres is 10^-3 but i may be massively wrong

Reply 71

diesegeld

Vamp1reWeekend

thats what i thought, dunno what the 2nd mark would be though ;s

yeah i wasnt sure either, i had to cross out the answer i'd written initially and ask for extra paper because I didn't read the question properly!

Reply 72

the graph was right??
i did write about the whole unloading to respiring tissues like! woooop

Reply 73

diesegeld

was the blood cells one just because there is more haemoglobin?

OMG i wrote more haemoglobin and crossed it out... *dumb brunette moment*

Reply 74

Artymess

i got 2400, micrometres is 10^-6, millimetres is 10^-3 but i may be massively wrong

YOU ARE KIDDING ME. Noooooooo two marks out of the window.

Reply 75

aaaah no wayyy, i got 242 or something anyway so even if did multiply it by the right factor i still wouldn't have got 2400

Reply 76

Vamp1reWeekend

aaaah no wayyy, i got 242 or something anyway so even if did multiply it by the right factor i still wouldn't have got 2400

you'd have got 2420, and they allow some leeway either side. it depends on what you measured the length to be, i got 48mm

oh and i liked the seahorse picture :smile:

it was cute

Reply 77