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    Hi,

    Anyone know what practicals are likely to come up on Friday's Biology Paper 2? I'm doing the IGCSE.
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    Im also doing it. Here is list of things likely to come up in a Paper 2 exam, taken from my CGP iGCSE revision guide:

    * how pH affects enzymes
    * turgidity in plant cells
    * balanced diet, energy requirements
    * experiment to calculate energy content from food (calorimetry)
    * phloem and xylem
    * experiment investigating CO2 production using an indicator (hydrogen carbonate solution) and how you can use the result to show differences in net gas exchange in plants
    * how heat produced from respiration can be measured (germinating peas experiment)
    * how net exchange of gases in and out of a leaf depends on light intensity
    * function of platelets in blood clotting
    * how vaccinations protect body from further infection
    * the iris reflex
    * how the lens focuses on near and distant objects
    * short sightedness and longsightedness and how to correct this using contact lens
    * the skins role in maintaining constant body temperature
    * germination of seeds
    * role of placenta and amniotic fluid
    * codominance - where both alleles are equally dominant
    * the water cycle
    * the nitrogen cycle
    * eutrophication
    * bacteria's role in making beer and yoghurt
    * industrial fermenters
    * transgenic - organism containing alleles from another species
    * cloning advantages and disadvantages

    *
 
 
 
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