OCR F211 - unit 1, Biology thread (Post exam)

for the hydrostatic pressure graph, i wrote "At A the blood plasma is being pushed/forced out of the capilary into the tissue fluid by osmotic pressure. Some protein molecules such heamoglobin are not permeable to the capilary pores as it is too large compared to the pores." thats how i wrote

as for the ligning, I wrote about cells being dead, provides structure to xylem and stability. it also acts as a waterproof to prevent leakage

Yeah I wrote that the smooth muscle contracts to constrict airway and that the elsatic fibres (FFS I PUT ELASTIC TISSUE, WILL THEY DEDCUT A MARK?) stretches and recoils to maintain pressure when heart relaxes.

but wasnt the question how does the artery differ from vein? Veins have smooth muscle and elastic fibres too, just thinner layers.

I put thicker collagen wall and thicker smooth muscle. Is that wrong?

i put reletively humidity decreases water potential gradient, and the stomata is less open in the afternoon as there is not much sunlight- i think i am wrong though??

Yeah i put wind speed, not really sure how it changes from morning to afternoon though haha. I walked out the exam and just thought '****, water availability'

haha your in the same boat as me! i think we both got it wrong

for the hydrostatic pressure graph, i wrote "At A the blood plasma is being pushed/forced out of the capillary into the tissue fluid by osmotic pressure. Some protein molecules such haemoglobin are not permeable to the capillary pores as it is too large compared to the pores." thats how i wrote

as for the ligning, I wrote about cells being dead, provides structure to xylem and stability. it also acts as a waterproof to prevent leakage

I wrote all those things down for the glycoprotein question!

I messed up the potometer question completly. and for the pits question, I thought they were asking about the stomata.

woot yea.. i think i made it to A this time xD, the only question i found bit mind-freezing was the one on continuous variation sketch, but i realized it in the end.. and the two mark question on .... the women/ ratio stuff where i think i managed to get one maybe two.. that the fat deposition might be irregular..

I put humidity, and water in the soil (chronologically, taking water at one time means there will be less at the next ;P) but I almost said a wire mesh around it, but that has nothing to do with time, unless the person who tends to them doesn't want to water them too much.

isn't humidity about how hot or cold the environment is?? im sure in the question it said "apart from temperature and light"

for the pits - I should have paid more attention to it when i was revising plant tranport, anyways my answer to that pits question i wrote it like this " The pits join up xylem vessels and phloem tubes." thats all i could of think off

What did you guys have for the question about the cycle thing? about C02. I put carbonic anhydrase then carbonic acid and ten hydrogencarbonate ions but it was hydrogen Also, the 1 which asked the chemical that absorbs carbon dioxide? I put chritin (or something) - is that even a word? LOL

What did you guys have for the question about the cycle thing? about C02. I put carbonic anhydrase then carbonic acid and ten hydrogencarbonate ions but it was hydrogen Also, the 1 which asked the chemical that absorbs carbon dioxide? I put chritin (or something) - is that even a word? LOL

Lol, you scared me for a moment. I was like 'huh fat deposition, DID I MISS A QUESTION?'

Phew.