Turn on thread page Beta

AQA BIOL5 Biology Unit 5 Exam - 22nd June 2011 watch

  • View Poll Results: Are you resitting this unit?
    YES!
    12.91%
    NO!
    87.09%

    Offline

    0
    ReputationRep:
    also, did the 'science' bit in the DNA essay question refer to science in the body? as in semi conservative replication etc???
    Offline

    2
    ReputationRep:
    Lol I just don't understand why they made that paper so brutally difficult. I mean surely they learnt from that unit 4 paper with all the shrew stuff? And even that paper wasn't as bad as this. Its like the unit 4 papers got better but unit 5 got worse.
    Offline

    0
    ReputationRep:
    (Original post by [email protected])
    ugh chem5 to go.. . behind on revison on that..hope its not another flopp.. here we go revision timeeeeeee <.<"
    Same :| I just want A*AA though, PC4 ruined maths A*, but thinking biology should be an A* after that . So kinda relaxed about chem as I think I only need roughly an E to get A overall Still going to try for A* though, so best get revising
    Offline

    0
    ReputationRep:
    why do they give us such a gay paper LOOOOOOL
    compared to june 2010 paper, june 2010 was so easy compared to this
    i hope grade obuadnries are low then i can get C in this fkin gay unit!!!!!!!
    Offline

    0
    ReputationRep:
    (Original post by M | k e)
    Hehe underneath the table it told you what they both were. Took me a good few looks before I spotted them. Would of been much better to have the information above the table, but yeah it's AQA.
    argh AQA and I even read the question lots of times
    Offline

    0
    ReputationRep:
    what did people put for the last 4 marker question?
    Offline

    0
    ReputationRep:
    For the lysosome question i put something along the lines of: Over time the number of them would decrease, as during the pupal stage organic matter is broken down (which the lysosomes would play part in), so the older the pupae got the less matter is broken down so the fewer lysosomes there would be.

    Really didn't have a clue on that question.

    Didn't think the exam was too bad overall, although there was an awful lot of stuff that required synoptic knowledge and ofcourse the typical AQA ambiguous questions .

    I feel sorry the marker who gets my essay. Had to ask for extra paper Ended up writing 8 A4 pages on cycles
    Offline

    0
    ReputationRep:
    (Original post by Gemma2010)
    argh AQA and I even read the question lots of times
    whats this?
    Offline

    0
    ReputationRep:
    (Original post by angel1992)
    what did people put for the last 4 marker question?
    I spoke about aerobic and anaerobic respiration. If there is no trachea then to produce energy, anaerobic respiration must occur which is why there was high enzyme activity. And then vice versa for the other enzyme
    Offline

    12
    ReputationRep:
    (Original post by grace=D)
    whoop whoop
    i put 75% but (hate to admit this) i sat there and counted the squares... 15 for the nerve, 5 for the hormone...75%
    Sorry to be an ass but..
    There was 2 for the hormone, and 8 for the nervous thing (in the unit of measurements)
    That means there was 10 whatevers produced overall...
    8/10 x 100 = 80%
    Offline

    0
    ReputationRep:
    off to revise chem5 now!!!! last exam so gonna put in all the effort into this!!!!!!!!
    Offline

    0
    ReputationRep:
    (Original post by angel1992)
    what did people put for the last 4 marker question?
    If the tracheae are broken down the pupa (i think it was pupa) can't get any oxygen so it starts respiring anaerobically. activity of enzyme B will therefore increease as it plays a part in the conversion of pyruvate to lactate. After 6 days the activity of B decreases and activity of A increases as the thracheae start to reform. Meaning the pupa can get oxygen, so enzyme A actvity will increase as the Kreb's cycle is now being used in aerobic respiration more
    Offline

    2
    ReputationRep:
    (Original post by mia613)
    also, did the 'science' bit in the DNA essay question refer to science in the body? as in semi conservative replication etc???
    It said USES of DNA and DNA technology mate.
    Offline

    0
    ReputationRep:
    (Original post by heather04)
    I thought that! But I didn't want to leave it blank so I said the cells were totipotent because they developed into a number of different things it showed they could specialise into a number of cells.. Ugh I'm so stupid :')
    Yeah I'm not trying to be picky but they should make it clear. I said they were totipotent cause they developed into any cell type, so it may be wrong
    Offline

    0
    ReputationRep:
    (Original post by heather04)
    I spoke about aerobic and anaerobic respiration. If there is no trachea then to produce energy, anaerobic respiration must occur which is why there was high enzyme activity. And then vice versa for the other enzyme
    ohh same but for 4 marks???
    Offline

    0
    ReputationRep:
    What did people get for the question on naa. On why/how an increase in temperature leads to an increase in uptake of naa
    Offline

    0
    ReputationRep:
    (Original post by Stirlo)
    If the tracheae are broken down the pupa (i think it was pupa) can't get any oxygen so it starts respiring anaerobically. activity of enzyme B will therefore increease as it plays a part in the conversion of pyruvate to lactate. After 6 days the activity of B decreases and activity of A increases as the thracheae start to reform. Meaning the pupa can get oxygen, so enzyme A actvity will increase as the Kreb's cycle is now being used in aerobic respiration more
    but it doesnt say anyhting about the trachae reforming?
    Offline

    0
    ReputationRep:
    (Original post by ejw93)
    it was clearly 80% 2 units + 8 units = 10
    8/10 * 100 = 80...
    It was 2 our of 8. It was definitely 75%
    Offline

    0
    ReputationRep:
    (Original post by fsaeed20)
    What did people get for the question on naa. On why/how an increase in temperature leads to an increase in uptake of naa
    i talked about stomata, cuticle and temeperature effect on the rate of diffusion for these questions??
    what did people get for the difference in yield variables, and also on why tssue culture is better etc
    Offline

    0
    ReputationRep:
    (Original post by Stirlo)
    For the lysosome question i put something along the lines of: Over time the number of them would decrease, as during the pupal stage organic matter is broken down (which the lysosomes would play part in), so the older the pupae got the less matter is broken down so the fewer lysosomes there would be.

    Really didn't have a clue on that question.

    Didn't think the exam was too bad overall, although there was an awful lot of stuff that required synoptic knowledge and ofcourse the typical AQA ambiguous questions .

    I feel sorry the marker who gets my essay. Had to ask for extra paper Ended up writing 8 A4 pages on cycles
    If I remember rightly it was something about as RNA increased, Lysosomes increased? Or vice versa.

    I put Lysosomes are vesicles of enzymes, enzymes are proteins, and protein synthesis requires RNA, so as RNA increased so did protein synthesis, hence more Lysosomes.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: June 22, 2016
Poll
Could you cope without Wifi?

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

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