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biology what are lipids useful for watch

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    id just like to know incase it comes up in the 25 mark essay question
    thanks
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    (Original post by alio)
    id just like to know incase it comes up in the 25 mark essay question
    thanks
    lipids are fats, oils and waxes.

    What do think they could be useful for? Try listing them here:
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    (Original post by Fluffy)
    lipids are fats, oils and waxes.

    What do think they could be useful for? Try listing them here:
    all i can think of at the moment is
    insulation in mammals
    energy - atp in mitochondria - lol im neva gonna pass
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    (Original post by alio)
    all i can think of at the moment is
    insulation in mammals
    energy - atp in mitochondria - lol im neva gonna pass
    do you think they might be water proof too?

    Do they make up cell membranes?

    Dietary requirement - not just for energy - essentailly fatty acids...

    come on! I know you can do this!

    Tink about the above and try and think of two more.
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    (Original post by Fluffy)
    do you think they might be water proof too?

    Do they make up cell membranes?

    Dietary requirement - not just for energy - essentailly fatty acids...

    come on! I know you can do this!

    Tink about the above and try and think of two more.
    yeah im missing the obvious

    cell membrane - hydrophilic head, hydrophobic tail,
    fats, unsaturated fats etc

    just hope proteins come up :rolleyes:
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    OK! Here we go!

    Strictly speaking there are two main classes of lipid - storage and structural (membrane)

    In mammals there are 3 main functions of lipids:

    Energy
    Structure (cell membranes)
    Hormones (steroids)

    other smaller functions include acting as cofactors in enzymes, act as intervellular messengers (signal transduction), electron transfer, aid vitamin absorbtion, act as 'shock absorbers' and protect major organs, prevent heat loss.


    Oils:
    liquid lipids!


    Waxes:
    Similar to fats and oils, but contain no glycerides. Waxey coverings leaves help waterproof them.

    HtH - not fully comprehensive, but covers a lot of the points.

    fxxx
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    (Original post by Fluffy)
    OK! Here we go!

    Strictly speaking there are two main classes of lipid - storage and structural (membrane)

    In mammals there are 3 main functions of lipids:

    Energy
    Structure (cell membranes)
    Hormones (steroids)

    other smaller functions include acting as cofactors in enzymes, act as intervellular messengers (signal transduction), electron transfer, aid vitamin absorbtion, act as 'shock absorbers' and protect major organs, prevent heat loss.


    Oils:
    liquid lipids!


    Waxes:
    Similar to fats and oils, but contain no glycerides. Waxey coverings leaves help waterproof them.

    HtH - not fully comprehensive, but covers a lot of the points.

    fxxx
    I did a big practice essay on lipids. You managed to miss electrical insulation, both in the heart and in myleinated nerve fibres.

    Also, the genetics module, gene therapy treatments are enclosed in liposomes, which means they can get through cell membranes really easily.

    Not that it matters now the exam is over and it didn't come up at all...
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    (Original post by figgetyfig)
    I did a big practice essay on lipids. You managed to miss electrical insulation, both in the heart and in myleinated nerve fibres.

    Also, the genetics module, gene therapy treatments are enclosed in liposomes, which means they can get through cell membranes really easily.

    Not that it matters now the exam is over and it didn't come up at all...
    Eaaasssy! i didn't manage to miss anything! I was trying to get the original poster to try to think over the subject and come up with some suggestions, rather than rely on the postings of others without understanding the answers. That was a list I put together in a few minutes, between meetings at work! As I said NOT comprehensive!

    PS Liposomes are sooo 1990's - most therapys now use RNAi based techniques or innert viruses
 
 
 
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