Hey there! Sign in to join this conversationNew here? Join for free
    Offline

    2
    ReputationRep:
    (Original post by Rezaa)
    I did the same! My teacher said thats fine as long as its scientifically accurate showing well developed understanding in that topic. Enough for 12/16 for scientific content. Plus the 3/3 for breadth
    How about if you only focused on internal responses like the immune system, blood glucose, haemoglobin & blood ph in detail? Would you lose marks?
    Offline

    1
    ReputationRep:
    (Original post by RebeccaHoran)
    How about if you only focused on internal responses like the immune system, blood glucose, haemoglobin & blood ph in detail? Would you lose marks?
    Yeah I guess because it did say explain responses to change in the external environment too Id say maybe a breadth and couple of scientific content marks dropped?
    Offline

    2
    ReputationRep:
    (Original post by Rezaa)
    Yeah I guess because it did say explain responses to change in the external environment too Id say maybe a breadth and couple of scientific content marks dropped?
    Ah I thought so I had a brain freeze and then ran out of time, how many marks do you think would be lost?
    Offline

    1
    ReputationRep:
    I wrote essay 10A andbi wrote about lung function and tissue fluid is that relevant
    Offline

    1
    ReputationRep:
    (Original post by RebeccaHoran)
    Ah I thought so I had a brain freeze and then ran out of time, how many marks do you think would be lost?
    I reckon if you developed your answer well and accurately it'd be 8/16 for content. And 2/3 for breadth.
    Offline

    1
    ReputationRep:
    (Original post by nualamurphy5)
    I wrote essay 10A andbi wrote about lung function and tissue fluid is that relevant
    Controlling rate of ventilation is a marking point if you included that?
    Offline

    1
    ReputationRep:
    Did anyone understand the last question about the graph with the resistant and non-resistance plants? To me it seemed like they were meant to put non-resistant with the enzyme instead of resistant with the enzyme,it made me so confused
    Offline

    0
    ReputationRep:
    (Original post by jessicasydes1)
    Did anyone understand the last question about the graph with the resistant and non-resistance plants? To me it seemed like they were meant to put non-resistant with the enzyme instead of resistant with the enzyme,it made me so confused
    It was resistant with PM inhibited and resistant (without PM inhibited). The question said that other factors (besides PM) increased survival. As the flies with resistance but PM inhibited was greater for surviving. Roughly 125 minutes for them to all die as opposed to 55 minutes for non resistant flies. So from that you know that resistance (another factor) is increasing survival. You could also compare that to the flies that don't have PM inhibited to show that it's not as effective for survival but nonetheless it improves it.
    Offline

    18
    ReputationRep:
    Did we need figures for the fly resistant question? I got the idea of involvement of other factors, but that inhibition did have some effect, by comparing the groups. The only figure I included was saying that when all the normal flies were dead, only about 50% of the inhibited group were
    Offline

    3
    ReputationRep:
    Is there a copy of the paper that got stolen?
    Offline

    0
    ReputationRep:
    For the essay question 10a, I wrote about adaption and speciation as well as pests. Is that irrelevent or would i get marks for that
    Offline

    2
    ReputationRep:
    anyone doing a mark scheme ? hoping i got a high c/b but i bet i didn't :/
    Offline

    0
    ReputationRep:
    (Original post by aaman1)
    For the essay question 10a, I wrote about adaption and speciation as well as pests. Is that irrelevent or would i get marks for that
    I wrote about that too - seems relevant, as long as you linked it back to the question
    Offline

    0
    ReputationRep:
    (Original post by biosixthform97)
    I wrote about that too - seems relevant, as long as you linked it back to the question
    Yeah, I said how they adapt to changes in environment and all that 'increased allele frequency' stuff. For the pests, I wrote how they become resistant to pesticides as a response..
    Offline

    5
    ReputationRep:
    Does bird navigation play any relevance to the first essay? I wrote how birds migrate due to colder climates :/


    Posted from TSR Mobile
    Offline

    3
    ReputationRep:
    (Original post by thatsimmortality)
    Spoiler:
    Show
    LOOOL this made me laugh so much cos i almost put social desirability bias too cos of research methods:dance: so glad i'm not the only one who thought with a 'psychology' mind lmao
    I put the same too! hahaha!
    Offline

    0
    ReputationRep:
    I attempted question 10a and I'm freaking out I'm so worried!!!!I spoke about mostly thermoregulation; how thermoreceptors detect high temperatures and that controlling of an internal environment is integral to avoid denaturing of essential enzymes such as dehydrogenase which oxadises triosephosphate in glycolysis for synthesis of ATP.I also said in times of high heat, due to this importance of a maintained body temperature, the body releases sweat so heat from skin is conducted. But then I went into LOADS of detail about how the body heats itself up in response to cold temperatures. I basically outlined every philosogical change that occurs to make someone "shiver". I spent ages talking about THE ENTIRE process:

    - thermoreceptors detecting low temp in external environment• stimulates heating center of hypothalamus

    - increases the amount of action potentials in autonomic nervous system• outlined the transmission of an action potential (sodium ions and each stage in polarisation)

    - how in order for this nerve impulse to be transmitted, ATP is needed for sodium potassium pumo to actively tansport sodium outside the membrane such depolation can occur.

    - ATP production is dependant on emzymes not being denatured in response to heat and having enough kimetic emergy to move to intermembrame space in chemoosmotic theory, where ATP is produced via diffusion of protons down ATPSynthase. Energy for movement of protons comes from the photons released as result of redox reactions when electrons move to subsequently lower energy stattes in oxidative phisphorilisation.

    - how this then leads to exocytosis of vesicles containing acetylcholine in neuromuscular junctions

    - increased temporal summatiom so threshold is more quickly achieved• therefore more changing in 3D shape of post synaptic receptors so more influx of sodium ions in t tube and thus more release of calcium ions from the sarcoplasmic rectillium to bind to troponin.

    - therefore myosin heads bind at a higher rate to actin filament and more power strokes/cross bridges occur.

    - Therefore shivering is a result of low temperatures and creates friction to increase the internal temoerature to 37°C.I know there's a lot in this process, but I'm worried to death because I'm only talking about ONE process (shivering).

    I also mentioned about temperature avoiding enzyme denaturation, and I spoke at the end about the suprachiasmatic nucleus (SCN) stimulating pineal gland to release melatonin to induce sleep in response to low light.I feel like I have talked WAY too much about one topic, instead of covering 4-5 areas in less detail. I am SO WORRIED!!!How badly will my mark be affected by doing this??? someone please reply
    Offline

    0
    ReputationRep:
    (Original post by JusOneLonelyNiga)
    I attempted question 10a and I'm freaking out I'm so worried!!!!I spoke about mostly thermoregulation; how thermoreceptors detect high temperatures and that controlling of an internal environment is integral to avoid denaturing of essential enzymes such as dehydrogenase which oxadises triosephosphate in glycolysis for synthesis of ATP.I also said in times of high heat, due to this importance of a maintained body temperature, the body releases sweat so heat from skin is conducted. But then I went into LOADS of detail about how the body heats itself up in response to cold temperatures. I basically outlined every philosogical change that occurs to make someone "shiver". I spent ages talking about THE ENTIRE process:

    - thermoreceptors detecting low temp in external environment• stimulates heating center of hypothalamus

    - increases the amount of action potentials in autonomic nervous system• outlined the transmission of an action potential (sodium ions and each stage in polarisation)

    - how in order for this nerve impulse to be transmitted, ATP is needed for sodium potassium pumo to actively tansport sodium outside the membrane such depolation can occur.

    - ATP production is dependant on emzymes not being denatured in response to heat and having enough kimetic emergy to move to intermembrame space in chemoosmotic theory, where ATP is produced via diffusion of protons down ATPSynthase. Energy for movement of protons comes from the photons released as result of redox reactions when electrons move to subsequently lower energy stattes in oxidative phisphorilisation.

    - how this then leads to exocytosis of vesicles containing acetylcholine in neuromuscular junctions

    - increased temporal summatiom so threshold is more quickly achieved• therefore more changing in 3D shape of post synaptic receptors so more influx of sodium ions in t tube and thus more release of calcium ions from the sarcoplasmic rectillium to bind to troponin.

    - therefore myosin heads bind at a higher rate to actin filament and more power strokes/cross bridges occur.

    - Therefore shivering is a result of low temperatures and creates friction to increase the internal temoerature to 37°C.I know there's a lot in this process, but I'm worried to death because I'm only talking about ONE process (shivering).

    I also mentioned about temperature avoiding enzyme denaturation, and I spoke at the end about the suprachiasmatic nucleus (SCN) stimulating pineal gland to release melatonin to induce sleep in response to low light.I feel like I have talked WAY too much about one topic, instead of covering 4-5 areas in less detail. I am SO WORRIED!!!How badly will my mark be affected by doing this??? someone please reply

    Try not to worry too much, our teacher told us that you can get an A on the questions alone, even without attempting the synoptic essay (providing they're all right and obviously wouldn't advise anyone to miss it out, but it is reassuring!) Everything you have written sounds great and there's no point in dwelling on it now that it's done, just be relieved that it's one less exam to worry about 😄
    Offline

    1
    ReputationRep:
    (Original post by erudite)
    Hi! I thought the paper was ok considering my minimal revision, I did essay A for which i wrote about:

    Homeostasis principle
    Thermoreg
    Enzymes
    Blood pH -> chemoreceptors
    Baroreceptors, pressure, bio basis of heart disease
    Immune Response
    Stomata/Plants, photosynthesis, plant tropisms
    ATP formation in anae respiration
    Muscle contraction
    Natural selection/Adaptation

    Posted from TSR Mobile


    But you only need 3 different things to get a breadth of 3?
    Offline

    0
    ReputationRep:
    I wrote about relfexes as well in 10a for the external condition change was that a good idea also wrote about phototropism?
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Has a teacher ever helped you cheat?
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • 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.