A2 Biology Essay help

Biology discussion, revision, exam and homework help.

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  1. The Toffy's Avatar
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    A2 Biology Essay help
    Topic: The different ways in which organisms use ATP.

    I've already got glycolysis in respiration and the light independent reactions in photo. and obviously, muscle contraction, exercise, active transport, production and growth. but what else that i can go into detail with? as i have only gone into detail with respiration and photosynthesis. ty guys
  2. ClaireHogben's Avatar
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    Re: A2 Biology Essay help
    for top marks you usually need five different topics, you've already got two....

    -active transport
    -protein synthesis, production of enzymes etc
    -electron transport chain for ATP production
    -muscle contraction

    ?????
  3. The Toffy's Avatar
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    Re: A2 Biology Essay help
    (Original post by ClaireHogben)
    for top marks you usually need five different topics, you've already got two....

    -active transport
    -protein synthesis, production of enzymes etc
    -electron transport chain for ATP production
    -muscle contraction

    ?????
    Aahh i get you. But my biology teacher specifically said not to write about how ATP is produced. As you get no marks for that. Erm does protein synthesis use ATP?
  4. ClaireHogben's Avatar
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    Re: A2 Biology Essay help
    Well I guess so. ATP is the main source of energy for the body so most things use it! I agree though, this question is much harder than it looks because its so hard to pick out specific examples
  5. Will is Fuhrer's Avatar
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    Re: A2 Biology Essay help
    anabolic reactions
    active transport
    muscle contraction
    bioluminescence
    homeostasis

    hope that helps some...
  6. The Toffy's Avatar
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    Re: A2 Biology Essay help
    (Original post by Will is Fuhrer)
    anabolic reactions
    active transport
    muscle contraction
    bioluminescence
    homeostasis

    hope that helps some...
    How does homeostatis use ATP? And i've never even heard of bioluminescence :eek:
  7. Will is Fuhrer's Avatar
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    Re: A2 Biology Essay help
    Homeostasis requires active transport to maintain solute potential in the kidney for example for the reabsorbtion of water.
    Bioluminescence isn't common so don't worry about it too much. Its accepted on the OCR syllabus as its used in things such as the angler fish to catch prey etc.

    David Attenbourough will explain...
  8. The Toffy's Avatar
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    Re: A2 Biology Essay help
    (Original post by Will is Fuhrer)
    Homeostasis requires active transport to maintain solute potential in the kidney for example for the reabsorbtion of water.
    Bioluminescence isn't common so don't worry about it too much. Its accepted on the OCR syllabus as its used in things such as the angler fish to catch prey etc.

    David Attenbourough will explain...
    Oh yeah of course.
    Thanks

    And yeah thought so, cos i do AQA.
  9. Will is Fuhrer's Avatar
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    Re: A2 Biology Essay help
    Glad to help mate
  10. MustyQ's Avatar
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    Re: A2 Biology Essay help
    i have written an essay on the use of ions, is there anything i can include off the syllabus?
  11. thegodofgod's Avatar
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    Re: A2 Biology Essay help
    (Original post by MustyQ)
    i have written an essay on the use of ions, is there anything i can include off the syllabus?
    Talked about Fe2+ / Mg2+ ions at the centre of Hb / chlorophyll molecules - you could mention stuff about co-ordinate bonding with ligands?

    Zn2+ / Cu2+ ions at the centre of some complexes. (Google them).

    HCO3- ions in the blood buffering system.

    Don't think you'll need more than that tbh
  12. thegodofgod's Avatar
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    Re: A2 Biology Essay help
    (Original post by The Toffy)
    Aahh i get you. But my biology teacher specifically said not to write about how ATP is produced. As you get no marks for that. Erm does protein synthesis use ATP?
    That makes a lot of sense, actually, as ATP production is not the same as how ATP is used in biology

    Have you talked about the phosphorylation stage of Glycolysis, where ATP is required?
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