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    (Original post by edsketch;[url="tel:56714689")
    56714689[/url]]Okay, something I'm really confused about, and I'm sure I'm not alone on this one. So the Electron Transport Chain is used during Non-Cyclic Phosphorylation, where light energy excites an e- which moves along the electron carriers losing energy.
    But it's also used in animals with Respiration, during Oxidative Phosphorylation? What're the differences between the two? It's so confusing!
    Remember that respiration also occurs in plant cells. And the processes are similar in respiration and photosynthesis. In photophosphorylation the final electron acceptor is a chlorophyll molecule/NADP while in oxidative phosphorylation its oxygen. That's all I can think of.
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    (Original post by domcandrews)
    Lol as if some guy on here was supposedly revising the f215 topics for the exam tomorrow!! thats jokes
    it's not funny haha think i might be in trouble
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    (Original post by hajs)
    Thats what i thought. The answer however is...
    either
    deaminationof amino acids / removal of NH2 from amino acids ;
    pyruvate/ carbon skeleton / AW ;
    triosephosphate / TP ;condensation/ increasing number of carbon atoms ;
    or
    breakdownof, lipid / triglyceride ;
    glycerol;
    triosephosphate / TP ;
    condensation/ increasing number of carbon atoms ; max3
    What I said is what happens. What they said is true but a very simplified version.

    Amino acids are bled into the krebs cycle via a few reactions, one being deamination to create a carbon skeleton. it then goes to pyruvate and does reverse glycolysis (one part of glycolysis is triosephospahte)

    TP + TP = Hexose-1,6-bisphosphate and then it goes in reverse to glucose.

    Same with the lipid stuff. They have basically over simplified it.
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    (Original post by nk96)
    My main Q was do they occur at the same time.
    No I think either one or the other because if photolysis of water occurs then it's definitely non-cyclic and if it doesn't occur then cyclic will take place.
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    (Original post by ZQ110)
    No I think either one or the other because if photolysis of water occurs then it's definitely non-cyclic and if it doesn't occur then cyclic will take place.
    Hmm yeah I thought so! Thanks
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    (Original post by PropaneHorcrux)
    Can someone please explain all the G words for me please, getting a little confused :/ (like glycogenesis etc)
    the -genesis suffix means create, the -lysis suffix means break apart/break down

    glycogenesis therefore means the creation of glycogen (from glucose)

    glycogenolysis is the breakdown of glycogen to form glucose
    gluconeogenesisis the creation of glucose from amino acids and fats

    The clues are in the name. If you're talking about glycogen as an end product, you have the prefix "glyco-" and the suffix "-genesis", because you're creating the glycogen.
    With the formation of glucose, it's both a "-lysis" and a "-genesis" because you can get glucose both from breaking something down (glycogen) and using something to form it (amino acids/fats)
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    (Original post by domcandrews)
    Lol as if some guy on here was supposedly revising the f215 topics for the exam tomorrow!! thats jokes
    lol imagine he gets higher than you
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    (Original post by hajs)
    After a prolonged period of fasting, glycogen levels in the liver are depleted. However the liver can still produce glucose by the process of gluconeogenesis. Describe one way in which this is done?

    Anyone gonna try to answer that? I found it really difficult lol..
    I would have said it was the conversion of lactate or pyruvate into glucose... not sure though!
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    (Original post by PropaneHorcrux;[url="tel:56715347")
    56715347[/url]]Can someone please explain all the G words for me please, getting a little confused :/ (like glycogenesis etc)
    Think of lysis as breaking down and genesis as creating. Glycolysis not to be confused with glycogenolysis.
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    (Original post by prof moriartress)
    Sodium/potassium ion pump actively removes Na+ from cells lining pct
    Na enter back the cell in association with glucose through cotransporter proteins
    Glucose diffuses back into the blood
    Water potential in filtrate increases
    H20 enters cells by osmosis
    Thank you!
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    List of where all the stages of respiration and photosynthesis occur?
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    (Original post by baymax96)
    List of where all the stages of respiration and photosynthesis occur?
    Respiration:

    Glycolysis - cytoplasm
    Link/Krebs - Matrix of mitochondria
    Oxidative Phosphorylation - Cristae in mitochondria

    Photosynthesis:

    Light dependent - Thylakoid membrane in chloroplasts
    Light independent - Stroma of chloroplasts.
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    Can someone explain Apical Dominance and Sensecence
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    (Original post by ZQ110)
    lol imagine he gets higher than you
    he probs will aswell!
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    Good luck everyone with the exam tomorrow! Just to check (I always worry I'm going to miss an exam and check multiple times haha), the exam is in the afternoon isn't it?
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    Glycolysis- cytoplasm
    Link reaction- matrix
    Krebs cycle- matrix
    Oxidative phosphorylation- Christae/ inner mitochondrial membrane
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    (Original post by baymax96)
    List of where all the stages of respiration and photosynthesis occur?
    Respiration
    Glycolysis - cytoplasm of cell (mitochondria don't have cytoplasms)
    Link reaction and Krebs cycle - matrix
    Oxidative phosphorylation - inner mitochondrial membrane/crista(e)

    photosynthesis
    Light dependent - thylakoid membrane
    Calvin cycle -stroma
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    (Original post by DaveUncle)
    it's not funny haha think i might be in trouble
    ah dont worry, you'll be fine, still got time and the exam isn't till the afternoon
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    (Original post by TotalerReinfall)
    What's F215? :/
    Looooooooooool i'm done
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    (Original post by alexthehuman)
    Im sorry if this has already been asked but im new to the thread. I can't find the 2014 f214 paper anywhere. Does anyone have it or know what the big questions were?
    Biotutor has all the past papers


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