OCR Biology F212 (Molecules, Biodiversity, Food and Health)- 21st May 2012

Lack of education
Cultural resistance to sexual protection
Lack of medical personnel
Higher amount of drug users

I can't wrap my head around that concept! do you think there's a good chance it'll show up?

Alright peeps, say I put down some stats of the percentage of the population with HIV around the world:

Africa: 15-35%
North America: 1%
Europe: 1%
South America: 1%
Asia: 1%
Australasia: 1%

Suggest reasons why the percentage of people in Africa with HIV is so high? [4]

On the right lines although I think 'poor health practises' and 'untrained health professionals' come under one marking point. You could also say it's socially accepted to have sex with multiple partners

ya true.

ok will try to explain again better to know everything and go coz during exm what happens is the thing that you don't prepare for will come up.
all of the craps called coenzyme, inorganic ions or prosthetic group come under cofactor. U can say they r types of cofactor.

this coenzyme is like a substrate it can bind to one of the enzyme as it has similar shape to that of substrate.
so while forming enzyme-substrate complex it brings an ion or anything that can help the enzyme to carry out its fxn well.
Basically its just like helping enzyme more to perform its function well.

hope this helped

Thank you!

Yo you didn't check my thing on CHD prevention

First of all the promote that smoking has highly negative impacts. They should also promote diet low in saturated fat. Also excersing. A diet loow in salt should also make difference. People should be more relaxed and prevent hypertension. Is that enough?

What?! They sound stupidly similar though. that's whats confusing me. What do you mean by quadrat area?

What?! They sound stupidly similar though. that's whats confusing me. What do you mean by quadrat area?

Extremely unlikely, I've not seen a question that is more than 3/4 marks for the Biodiversity section of Unit 2 as a whole and I don't think OCR will pull one on us, lol

Explain the importance of species evenness in determining the biodiversity in a biodiversity (3)

its more quantitative than species richness
more species evenness means more number of species present so more diverse and is stable
less species evenness means dominated by one species so less diverse so not much stable
also helps to calculate Simpson't Index

Yep-well done Can you ask me one now, can be on anything!

I reckon a big question will come up on advantage and disadvantages of in-situ/ex-situ ? (8) marks,

that would be much more better than having long question on how resistant bacteria are produce or something.