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ALevel biology coursework - Need some ideas pleaseeee !

Discussion in 'Access to Higher Education: Nursing, Midwifery and Healthcare Professions' started by MollyFrances17, Aug 25, 2011.

  1. MollyFrances17

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    Hello, so over the summer ive been asked to think of some ideas for an experiment we have to do on our own from scratch for our A2 coursework and i really cannot think of anything that im interested in doing !! :( everones doing bacteria growth and boring things like that, wanna do something to do with the body but cant think of anything i can do. it must be measurable and not too time consuming i have 2 weeks to do it i think. Any ideas would be greatly appreciated ! THANKYOU ! :)
     
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  2. WooWooSauce

    WooWooSauce 1st Year Student

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    Something to do with enzymes?

    Something like seeing what effects temperature has on beetroot cells and causes them to release the colour pigment?

    I found these on another site

    Factors affecting relative activity of immobilised enzymes..eg bead size or flow rate or temperature or substrate concentration or vessel shape (use one only!)
    Comparing antibacterial action of (eg) Strepsils vs Fishermens Friends
    Comparing antibacterial action of (eg) TCP vs Aspirin/disprin or similar
    Which is the cheapst bug killer? Cost effectiveness comparison of antibacterials (eg those in the previous two suggestions.
    Factors affecting the production of simple sugars through the malting of barley grains.
    Factors maximising alcohol yield from (eg) fruit juices or grains or potato.. could use a single yeast strain OR more than one(but don't overdo it!).
    Are there differences in water potential between fruit at different ripenesses? Or in potatoes as they sprout? (Many do between Feb-April)
    Effect of fruit ripening on concentration of reducing sugars(a variation on the previous suggestion)This one is a very tricky one to carry out!
    Effect of fruit ripening on the concentration of proteolytic enzyme in pineapples.(This digests gelatin)
    Factors affecting tomato seed germination. Does washing, treatment/removal of testa affect it? (You'll need to research and suggest reasons!).
    The rate of fermentation of various carbohydrate(e.g. lactose/glucose/starch/sugar etc. etc.) by yeast(or their growth). Could relate to several themes including respiration.
    Effects of alcohol on yeast respiration
    Effects of different alcohols on yeast respiration
    Action of inhibitors on the activity of the enzyme succinic dehydrogenase obtained from plant tissue. Possible inhibitors include silver nitrate and malonic acid.
    Effect of sodium chloride on amylase
    Effects of temperature or pH on enzyme activity.Careful! Needs great refinement and originality to be at all worthwhile!!
    Effects of calcium chloride on (different) milk clotting enzymes
    Effects of substrate concentration on enzyme activity. Needs great care to be worthwhile!
    Root tip squashes - but beware! You need to make these quantitative.
    Effects of different pH solutions on membrane permeability
    Effects of alcohols on membrane permeability
    Effects of heat(cooking)/light(storage)/cold(freezing or refrigeration) on vitamin C content in named fruit(ie optimal conditions are...?)
    Is vitamin C denaturation related to the cooking method (ie boiling, frying, baking). Why?
     
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  3. Geozak

    Geozak Member

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    this is bacterial growth (but a bit different ;) ) what about looking at different strains of bacteria and the effects on growth using the alcohol gels used in hospital (therefore testing its effectiveness) (or with one strain and different amounts of the alcohol gel) . I do this with GCSE kids in science it works quite well but you would have to ask your tutor if they have different strains and if not could they be ordered.
     
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  4. MollyFrances17

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    yeah i like the idea of the hand gel ! i dont want to do something too fidly and complicated so this one sounds good :D thanks ! xx
     
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  5. Geozak

    Geozak Member

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    your welcome :)
     
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  6. Mrs Bear

    Mrs Bear Well-Known Member
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    Sounds like a fab idea!
     
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