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AS Biology HW HELP?

A non smoker with low blood pressure has a plasma cholesterol concentration of 5 mmol per litre. Over a period of time this concentration increases to 8 mmol per litre. By how many times has this risk of heart disease increased? Show your working (2marks)

Reply 1

phaseshift

Original post by Choco_Cosmo!

You won't gain anything if someone just tells you the answer.

First, how would you go about solving this problem? Do some googling if you are un-sure and then post it.

Reply 2

Exon

You do realise this question is impossible to answer without data? Fortunately for you I remember this question from my AQA AS Biology book and happen to still have it.

Look at the curve that corresponds to the non-smoker and read off the corresponding percentages. You should be able to see what to do from there.

(edited 10 years ago)

Reply 3

Choco_Cosmo!

Original post by HarryMWilliams

You won't gain anything if someone just tells you the answer.

First, how would you go about solving this problem? Do some googling if you are un-sure and then post it.

For your information, i was asking how would you go about solving it, not for someone to give me an answer! :unimpressed:

Reply 4

Exon

Original post by Choco_Cosmo!

For your information, i was asking how would you go about solving it, not for someone to give me an answer! :unimpressed:

Did you get it in the end?

Reply 5

phaseshift

Original post by Choco_Cosmo!

Hence the "do some googling" part at the end. :rolleyes:

Reply 6

Choco_Cosmo!

Original post by Exon

Did you get it in the end?

Yes

Reply 7

RoyalBlue7

Original post by HarryMWilliams

Hence the "do some googling" part at the end. :rolleyes:

Lol this a set question based on a graph from made up secondary data. Google would give an answer half the globe away. :colondollar:

Reply 8

ToLiveInADream

It's basically maths? It's increased by 60% (50/5 for 20%).

Reply 9

Exon

Original post by ToLiveInADream

It's basically maths? It's increased by 60% (50/5 for 20%).

That would be wrong. OP hasn't given the whole question therefore it's impossible to do it because we don't know if the relationship between risk and cholesterol concentration is linear (or even constant for that matter).

The original question gives a line graph with cholesterol concentration against % suffering from heart disease. Four curves were given to differentiate between smokers/non-smokers and high/low blood pressure. OP was meant to pick the right curve and read the percentages at 8mmol/l and 5mmol/l then divide the former by the latter to get the answer.