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    (Original post by amber109)
    okey i'll remember, any other tips? also how are you revising atm? past papers?
    Kind of, what I'm doing is going through the specification and checking that I know everything on there. If I don't know it, I'll find past paper questions on that point and go through them, and if I still don't get it, going back to the text book. If you want, I have a grid with all of the specification points on and what past papers they appear in I can upload if you think it will be helpful?
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    What's the role of microorganism in carbon cycle?

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    (Original post by [email protected])
    Does carbon fixation mean using co2 to produce organic products or am I wrong?
    Yeah basically carbon fixation is the calvin cycle.
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    Hey guys, I see the revision is going well
    Does anyone happen to have a sheet with all the key terms and their definitions? :s
    Would appreciate if you can upload it or share the link!
    Thanks in advance
    And goodluck for tomorrow!
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    (Original post by raves)
    can someone help me with june 2010 Q2 b)ii) pleaaaasee
    NPP = GPP - Loss

    24.4 - 3.7 = 20.7

    20.7/ 24.4 *100 = 84.83606557
    = 84.84 (2 d.p.)
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    (Original post by jojo1616)
    What's the role of microorganism in carbon cycle?
    They break down the organic material (e.g. dead plant matter) and release it in the form of CO2 by respiration.
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    (Original post by jojo1616)
    What's the role of microorganism in carbon cycle?

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    They are the decomposers
    So plants and animals die - microorganisms break in down and respire to return the carbon back in the atmosphere by respiration
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    I'm worried that I can't finish the paper on time as.there's lots.of data analysing...any help ?

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    (Original post by MarshmallowBob)
    Is anyone struggling with the time?
    Probably because in unit 1 and 2 there was 80 marks and we had an hour and a half but now there is 90 marks and still an hour and a half!
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    (Original post by HQazi)
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    They are the decomposers
    So plants and animals die - microorganisms break in down and respire to return the carbon back in the atmosphere by respiration
    (Original post by Brad0440)
    They break down the organic material (e.g. dead plant matter) and release it in the form of CO2 by respiration.
    Thx guys

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    True, any suggestion so that we can finish.it on time?

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    (Original post by jojo1616)
    I'm worried that I can't finish the paper on time as.there's lots.of data analysing...any help ?

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    I have trouble with time too, but what you could try doing is going for the big-markers (5+ marks) first, and then after you've finished them or the exam is 30 mins through, go for the shorter ones you can answer quickly (the 1-2 mark questions), and then go through and finish the rest. Or, alternatively, just go through the paper from start to finish carefully, not worrying about the time, and try to get as many marks as possible, and then if you're running out of time, skip ahead and get the easy marks.
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    (Original post by EstebanK0)
    NPP = GPP - Loss24.4 - 3.7 = 20.7 20.7/ 24.4 *100 = 84.83606557 = 84.84 (2 d.p.)
    why did you divide it by 24.4?
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    (Original post by Brad0440)
    Kind of, what I'm doing is going through the specification and checking that I know everything on there. If I don't know it, I'll find past paper questions on that point and go through them, and if I still don't get it, going back to the text book. If you want, I have a grid with all of the specification points on and what past papers they appear in I can upload if you think it will be helpful?
    Can you upload please?
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    I need a 86/120 UMS in unit 4 and unit 5 to get an overall B.

    I'm screwed.
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    Does anyone know why vaccinations wear off after a while and have to be repeated?
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    (Original post by C94)
    I need a 86/120 UMS in unit 4 and unit 5 to get an overall B.

    I'm screwed.
    What have you got in the other modules?
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    (c) The energy released by reaction S is used to form GALP
    (glyceraldehyde 3-phosphate) during the Calvin cycle.
    Plant cell walls contain cellulose molecules.

    Suggest how GALP may be used to synthesise cellulose.
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    (Original post by [email protected])
    Does anyone know why vaccinations wear off after a while and have to be repeated?


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    Isn't because its artificial?
    Or the memory cells run out lol
    Sorry I don't know the exact answer
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    (Original post by Sravya)
    Can you upload please?
    The crosses means that the specification point IS in the past paper.

    As the headings aren't very clear, I'll put a list of them here in the same order as they are on the image:

    Chloroplasts in photosynthesis
    Photosynthesis
    -Energy from light to break up water
    -Hydrogen stored as a fuel in glucose by combination with CO2 and releasing O2
    Light dependent reactions
    ATP as energy
    Light independent reactions
    Use of light independent reaction products
    NPP + GPP
    Trophic levels
    Carbon cycle
    Biotic and abiotic factors
    Ecology study
    Niche
    Succession
    Global warming cause and effect
    Temperature and enzyme activity
    Temperature and development
    Evidence for global warming
    Global warming controversial evidence
    Change in allele frequency due to mutation/natural selection
    Speciation
    Antibitoic resistance
    Accepting evidence due to peer review etc.
    Nature of the genetic code
    Protein synthesis
    Exons
    DNA profile
    PCR
    Gel electrophoresis
    Bacteria Vs. viruses
    Decomposition by micro-organisms
    Barriers to infection
    Specific bacterial and viral diseases (i.e. TB and HIV)
    Non-specific immune system
    Cells etc. within the immune system (e.g. T-cells, antibodies, etc.)
    Immunity
    Antibiotic types (static/cidial)
    Antibiotic effects ('Clear zone' practical)
    Death-forensics

    Sorry about the poor hand-writing, and I can't guarantee that I haven't missed any questions out. Also, the last column is just my predictions as to what could come up in this paper and can be ignored.
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