Join TSR now and get all your revision questions answeredSign up now
    • Thread Starter
    Offline

    1
    ReputationRep:
    How do you calculate heart rate from a table?
    Biology AQA January 2012 question 5(b)

    I have a table like this:
    Time/s Volume of blood/cm^3
    0.0 125
    0.1 148
    0.2 103
    0.3 70
    0.4 56
    0.5 55
    0.6 98
    0.7 125
    Offline

    1
    ReputationRep:
    (Original post by abbie4321)
    How do you calculate heart rate from a table?
    Biology AQA January 2012 question 5(b)

    I have a table like this:
    Time/s Volume of blood/cm^3
    0.0 125
    0.1 148
    0.2 103
    0.3 70
    0.4 56
    0.5 55
    0.6 98
    0.7 125


    Hey, so its heart rate times stroke volume to get the cardiac output
    u found the heart rate to be 86 and the stroke volume is just max-min
    so 125-55 gives 70 times 86 which is 6020

    hope this helped and i have a question
    is there any point in doing papers below 2009 when the speciification changes for unit 1 and unit 2?
    do u think there would be any point or to just skip them ?
    thaanks
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by iman.k)
    Hey, so its heart rate times stroke volume to get the cardiac output
    u found the heart rate to be 86 and the stroke volume is just max-min
    so 125-55 gives 70 times 86 which is 6020

    hope this helped and i have a question
    is there any point in doing papers below 2009 when the speciification changes for unit 1 and unit 2?
    do u think there would be any point or to just skip them ?
    thaanks
    Thanks! How do you calculate the heart rate at 86?
    And hmm I aren't sure really, AQA have taken all the papers below 2010 off of their website (last year they went all the way back to 2006) which may be a good indicator to not do them. But if you have time, I don't see any harm in doing some later papers because most of the stuff is still in the spec, and it's good exam practice. I'm going to try and complete them all - but that's just because I like to do that for my own sanity haha, sorry that I can't be of much help
    Offline

    1
    ReputationRep:
    one cycle took 0.7s so in 1 min u get 60/0.7 which gives u 86
    And thanks the older papers are on the AQA website under older past papers and yeah I guess if you have time it's extra practice
    Thanks! Good luck
    • Thread Starter
    Offline

    1
    ReputationRep:
    (Original post by iman.k)
    one cycle took 0.7s so in 1 min u get 60/0.7 which gives u 86
    And thanks the older papers are on the AQA website under older past papers and yeah I guess if you have time it's extra practice
    Thanks! Good luck
    Ohhhh yeah haha, thanks for that!
    Good luck to you too
 
 
 
Poll
How are you feeling about GCSE Results Day?
Help with your A-levels

All the essentials

The adventure begins mug

Student life: what to expect

What it's really like going to uni

Rosette

Essay expert

Learn to write like a pro with our ultimate essay guide.

Uni match

Uni match

Our tool will help you find the perfect course for you

Study planner

Create a study plan

Get your head around what you need to do and when with the study planner tool.

Study planner

Resources by subject

Everything from mind maps to class notes.

Hands typing

Degrees without fees

Discover more about degree-level apprenticeships.

A student doing homework

Study tips from A* students

Students who got top grades in their A-levels share their secrets

Study help links and info

Can you help? Study help unanswered threadsRules and posting guidelines

Sponsored content:

HEAR

HEAR

Find out how a Higher Education Achievement Report can help you prove your achievements.

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.