Join TSR now and get all your revision questions answeredSign up now

AQA Biology Unit 3 Tuesday 12th May 2015- *Official Thread* Watch

    • Thread Starter
    Offline

    0
    ReputationRep:
    Your reactions and thoughts of the exam? Answers to questions...
    Offline

    2
    ReputationRep:
    I found it a lot easier than B2!!!


    Posted from TSR Mobile
    Offline

    2
    ReputationRep:
    (Original post by isabellagrace)
    I found it a lot easier than B2!!!


    Posted from TSR Mobile
    Agree definitely!

    I liked how many 1 mark questions there were as well and the 6 marker was good
    • Thread Starter
    Offline

    0
    ReputationRep:
    [QUOTE=isabellagrace;55699347]I found it a lot easier than B2!!!


    Posted from TSR Mobile[What do you think the grade boundaries will be?]
    Offline

    1
    ReputationRep:
    Definately a lot easier than b2. Unfortunately this will mean higher grade boundaries though...
    Offline

    0
    ReputationRep:
    What did everyone put for the egg question?

    Posted from TSR Mobile
    Offline

    1
    ReputationRep:
    (Original post by harryrwx)
    What did everyone put for the egg question?

    Posted from TSR Mobile
    I wrote about it as osmosis. Water diffuses. Along with the sugar (glucose) with the egg uses for respiration therefore growing in mass.
    Offline

    2
    ReputationRep:
    (Original post by emileepifanoff)
    I wrote about it as osmosis. Water diffuses. Along with the sugar (glucose) with the egg uses for respiration therefore growing in mass.
    What was the context of the egg question again? I don't remember it and I definitely answered everything hmmm


    Posted from TSR Mobile
    Offline

    0
    ReputationRep:
    (Original post by emileepifanoff)
    I wrote about it as osmosis. Water diffuses. Along with the sugar (glucose) with the egg uses for respiration therefore growing in mass.
    But if it was absorbing sugar molecules then how can it be osmosis at the same time?
    I wrote that the sugar molecules diffused from the high concentration (outside the egg) to the low concentration (inside the egg) which is why it gained mass. The question didn't state if it was in a solution of water or not so I was hesitant to state that it was osmosis. I think I got it wrong anyway...
    Offline

    2
    ReputationRep:
    It took me ages to figure out it was osmosis. I said that solution A must've been the one with the lowest amount of sugar in it because the water diffuses into the egg via osmosis. This is because water molecules move from a dilute to a more concentrated solution.
    Offline

    0
    ReputationRep:
    How did you guys do that graph on deaths from heart attacks or something?
    Offline

    3
    ReputationRep:
    What did everyone put for the question with the bell jar model of the human ventilation system? I was really stuck on why the 'diaphragm' flattening caused the balloons to inflate, I feel like I should know this but I was stumped!
    Offline

    3
    ReputationRep:
    Wait what egg question?! Did I miss a question out?!
    Offline

    2
    ReputationRep:
    People doing further additional, opposed to standalone science GCSE's had the egg question instead of the lung question
    Offline

    3
    ReputationRep:
    (Original post by DustToDust)
    People doing further additional, opposed to standalone science GCSE's had the egg question instead of the lung question
    Ooh phew!
    Offline

    1
    ReputationRep:
    Egg?????
    Offline

    1
    ReputationRep:
    (Original post by RachJess4)
    What did everyone put for the question with the bell jar model of the human ventilation system? I was really stuck on why the 'diaphragm' flattening caused the balloons to inflate, I feel like I should know this but I was stumped!
    diaphragm flattens>increased volume>decreased pressure>pressure differential>so air is drawn in
    • Thread Starter
    Offline

    0
    ReputationRep:
    For the 6 mark question, was it about the advantages and disadvantages of artificial heart valves, or advantages and disadvantages comparison of living human heart valves and artificial heart valves? HELP ME OUT!!!
    Offline

    3
    ReputationRep:
    (Original post by haz_918)
    diaphragm flattens>increased volume>decreased pressure>pressure differential>so air is drawn in
    Phew! I put something about increased volume and decreased pressure, my answer was so poorly explained though :/
    Offline

    2
    ReputationRep:
    (Original post by orangeee22)
    Agree definitely!

    I liked how many 1 mark questions there were as well and the 6 marker was good
    6 marker was so good and it was basically an exam full of 1 and 2 mark questions, luckily
 
 
 
Poll
How are you feeling about GCSE Results Day?

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.