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    (Original post by Km99)
    the speed at which chemical reactions take place in the body
    Perfect answer. Another way to say it is "The rate of chemical reactions in the body."
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    What is the difference between sexual and asexual reproduction? 2/3 marks.
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    Give two ways the metabolic rate is affected.
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    What is homeostasis and what does it control?
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    (Original post by IAmAnTroll)
    Give two ways the metabolic rate is affected.
    Genes / inherited factors
    Exercise
    Gender
    Proportion of muscle to fat in the body

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    (Original post by IAmAnTroll)
    Give two ways the metabolic rate is affected.
    By inherited factors and the amount of exercise you do

    Give two ways that energy is lost from a food chain
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    (Original post by hafsa23)
    By inherited factors and the amount of exersise you do
    Well done.

    Also by the proportion of muscle to fat in the body.

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    (Original post by JakeAntonyBrown)
    Explain in detail the carbon cycle, in full....

    This is most likely to be a 6 mark question.

    Green plants and algae remove carbon dioxide from the atmosphere, and the carbon is used as carbohydrates, fats and proteins. When the green plants and algae respire, some of the carbon is returned back to the atmosphere at carbon dioxide. When green plants and algae are eaten by animals, the carbon becomes fats and proteins in the animals. When animals respire, carbon is returned to the atmosphere in the form of carbon dioxide. When green plants, algae, and animals die, they are broken down by detritus feeders and micro-organisms. When the detritus feeds and the micro-organisms respire, carbon is released into the atmosphere as carbon dioxide. The compounds that have been put back into the soil are then absorbed by plants as nutrients and are put back into the food chain. Combustion of fossil fuels and plant and animal products releases carbon dioxide into the air. It is a constant cycle.
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    (Original post by JakeAntonyBrown)
    What is the difference between sexual and asexual reproduction? 2/3 marks.
    Sexual reproduction involves two parents, fusion of gametes, mixing of chromosomes. asexual is one parent, no fusion of gametes, one pair of chromosomes, no variation
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    (Original post by hafsa23)
    By inherited factors and the amount of exercise you do

    Give two ways that energy is lost from a food chain
    Respiration requires energy
    Some of the biomass may not have been eaten
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    (Original post by IAmAnTroll)
    Sexual reproduction involves two parents, fusion of gametes, mixing of chromosomes. asexual is one parent, no fusion of gametes, one pair of chromosomes, no variation
    Perfect answer....
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    (Original post by Dj3824)
    Explain the steps in drug trials (6 marks)
    this might come up this year
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    (Original post by jazz_xox_)
    Green plants and algae remove carbon dioxide from the atmosphere, and the carbon is used as carbohydrates, fats and proteins. When the green plants and algae respire, some of the carbon is returned back to the atmosphere at carbon dioxide. When green plants and algae are eaten by animals, the carbon becomes fats and proteins in the animals. When animals respire, carbon is returned to the atmosphere in the form of carbon dioxide. When green plants, algae, and animals die, they are broken down by detritus feeders and micro-organisms. When the detritus feeds and the micro-organisms respire, carbon is released into the atmosphere as carbon dioxide. The compounds that have been put back into the soil are then absorbed by plants as nutrients and are put back into the food chain. Combustion of fossil fuels and plant and animal products releases carbon dioxide into the air. It is a constant cycle.
    Perfect, you might want to mention the name of the process for the first stage, it's photosynthesis.
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    (Original post by JakeAntonyBrown)
    Perfect answer. Another way to say it is "The rate of chemical reactions in the body."
    yep, lets hope it comes up as a question.
    what causes bacteria to become resistant to antibiotics? (4 marks)
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    I hope drug trials is 6 marker

    either how they are tested or what they r tested for

    Q: What are statins
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    (Original post by IAmAnTroll)
    I hope drug trials is 6 marker

    either how they are tested or what they r tested for

    Q: What are statins
    used to treat cardiovascular diseases as they reduce cholesterol
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    (Original post by IAmAnTroll)
    I hope drug trials is 6 marker

    either how they are tested or what they r tested for

    Q: What are statins
    A drug used to lower the levels of cholesterol in the blood, they do this by reducing the amount of cholesterol your liver produces.

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    (Original post by IAmAnTroll)
    Respiration requires energy
    Some of the biomass may not have been eaten
    The first part is partly right but you'd probably have to expand on it by saying that the energy is used when the animals move.
    The second point i'm not so sure about but i do know that energy is lost as faeces (waste material)
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    Give an advantage and a disadvantage of using steroids in sport for the sportsman/sportswoman (2 marks).
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    What is a drug?
 
 
 
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