AQA BIOL1 Biology Unit 1 Exam - 16th May 2011

You clearly do not understand the difference between revenue and profit. Obviously it pays staff, but with no shareholders it does not aim to make a profit, and any excess cash is does have left over will be ploughed back into the business, reducing prices for future exam takers.

So before you start moaning about how **** AQA is, at least do a little research.

SOMEONE POST THE BLODDY MARK SCHEME!! I'M GOING OUT OF MY MIND HERE!!!!!!!!!!

Sorry but I''ve failed this paper just because AQA are nobs! Such stupid 1 markers trying to catch you out!!

I said a vaccine would be counterproductive as it could lead to death by cardiac disease due to the immune systems cells being provoked to attack the heart muscle cells which have a similarly shaped antigen to the one on the chlamydia bacteria.

What did people put for the time atria ventricular valves were closed ?? And why ??

I went in like cos I'd revised LOADS and this was my re-sit.. and came out like:
Maybe I'm just **** at life haha xD How did you think it went?!

They love to create vague exam questions and have dodgy mark schemes, they are a half-arsed examining body. Knob heads.

do you think the could push the grade boundaries to 50/60 to get an A

Ive looked at the past 5 bio unit 1 grade boundaries and the highest for an A ive seen is 45/60 and lowest being 37/60. Rest of them ranging in the low 40s. Im predicting a boundary between 40-45/60, with 100 UMS being probably 48-53/60

I like how everyone wanted an easy paper last night but now they want it to be considered harder than June 2010

Haha, someone posted this on the AQA wiki entry:

hi what did you guys put for galactose interfering with the hydrolysis of lactose?, something about enzyme inhibition

oh i'm so stressed over this exam, can anyone clarify if my answers are right?

fistly i know i messed up on the heart, and ALL the calculation questions...

1. for the emphysema i wrote about
- thicker alveoli walls, so longer diffusion pathway
- not much elastin so lungs can't expell air easily, making it harder to inhale air and therefore less diffusion.
- small surface area due to thicker alveoli walls

2. for the first and secon question i got hydrolysis and glucose

3. for the phagocyte question i got:
- phagocyte attracted to pathogen
- phagogcyte attatches and engulfs the pathogen
- vesicle forme
- lysocomes produce lytic enzymes to break down the pathogen
- absorbed into cytoplasm

4. for the pH question to maintain it i put that you should use a buffer solution

5. for the last questoon on absorbtion i totally freaked out, but i put
- microvilli increases surface area
- Contain mitochondria so there is ATP for active transport
(i hardly got any points for that last one )

6. for the lactose intoleance : water potention in the lumen is lower so osmosis occurs causing diarrhoea :/

im stressed!

I said a vaccine would be counterproductive as it could lead to death by cardiac disease due to the immune systems cells being provoked to attack the heart muscle cells which have a similarly shaped antigen to the one on the chlamydia bacteria.

SOMEONE POST THE BLODDY MARK SCHEME!! I'M GOING OUT OF MY MIND HERE!!!!!!!!!!

Sorry but I''ve failed this paper just because AQA are nobs! Such stupid 1 markers trying to catch you out!!

Looking back at the exam paper, it was easier than most. But its just contained too many vague questions.