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AQA BIOL1 Biology Unit 1 Exam - 16th May 2011

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Reply 900

Kaiser_K123

what about for evaluating the vaccination?
why was it good/bad?

Reply 901

Rahul.S

i said the time for the atreoventricular closing 4rm 0.1 to 0.2....i guess upto 0.5 is right....for the vaccination i said....depends on herd immunity, side effects, storage, trained staff and economically viable.

i dnt rememba wt i wrote for the beats per minute stuff....i rememba writin 60/0.7.....but nt the answer kmt -_- also for the last ques wrote quite a few points but not mitochondria and i said the glucose conc lower in lumen compared to blood (thts debatable)...the rest of it is fine. i reckon im losing 9 marks max...and im being really harsh.

hopefulli 100 ums will be near 50 sumfin

Reply 902

questionandanswer

I didnt write this but I think it is:

(Number of deaths from breast cancer/total population) x100000

Reply 903

darkred

I put 0.0 - 0.5 fml :colonhash:

Reply 904

Rahul.S

Original post by karimshaheda

I didn't understand the simple questions, when you have to read off graphs..
How did everyone work out the one where it was death rates amongst breast cancer people per 100000 or something?

The question was like: 'How did scientists calculate the rate of deaths or something...'.

i said hospitals data, sample (representative) or from entire population if possible....btw what did people write for the control of ph....wrote buffer. a mate of mine said put a lid :eek:

Reply 905

liviaaa

Original post by karimshaheda

Add together all the ages people died at, and divide by the total number (the mean.) Then equate it to per 100,000.

Reply 906

liviaaa

Original post by Rahul.S

i said hospitals data, sample (representative) or from entire population if possible....btw what did people write for the control of ph....wrote buffer. a mate of mine said put a lid :eek:

Lol,lid? Yeah it's buffer :smile:

Reply 907

darkred

Original post by liviaaa

Add together all the ages people died at, and divide by the total number (the mean.) Then equate it to per 100,000.

I said they calculated a ratio...

Reply 908

liviaaa

What about the "Can they say the fatty diet causes breast cancer deaths?" Or something like that...

Reply 909

Rahul.S

Original post by liviaaa

Lol,lid? Yeah it's buffer :smile:

i guess a lid can work :rolleyes:

Reply 910

darkred

Original post by liviaaa

What about the "Can they say the fatty diet causes breast cancer deaths?" Or something like that...

Correlation doesn't equate to causation, other factors could have cause breast cancer..

Reply 911

liviaaa

Original post by Rahul.S

i guess a lid can work :rolleyes:

Hahaa..

Reply 912

Rahul.S

Original post by liviaaa

Hahaa..

how many do you reckon u got wrong....max?

Reply 913

questionandanswer

I wrote:

-Correlation doesn't mean causation
-other factor maybe involved such as amount of exercise
-there was a large amount of scatter around the line so eating a lot of fat, doesn't necessarily mean you will die of breast cancer

Reply 914

liviaaa

Original post by failingatm

Correlation doesn't equate to causation, other factors could have cause breast cancer..

Yeah I put:

-Positive corrleation (there was a mark for this in Jan 11 but for negative)
-Can't say cause/effect
-Other factors such as smoking and excercise
-Different countries - diff medicines/cures to treat breast cancer, so may not die depending on treatments

Reply 915

Original post by liviaaa

What about the "Can they say the fatty diet causes breast cancer deaths?" Or something like that...

-positive correlation but not causal link as could be other factors (ethnicity ...)

for the cancer question.. why are people including age? I didn't think that was relevant.

my fault for not reading the BPM question properly. I saw that the pressures at 0 and 0.7 were the same and so thought it was 60/0.6 = 100; bit annoyed as i put 85.7 first but its 2 marks.