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    (Original post by L'Evil Fish)
    10 mark section at the end. No one question will be ten marks though.

    Six markers...
    B4: Transpiration rates/Adaptation of leaves:dontknow:

    Actually no idea...
    Thanks....I amso worried about the 10 marks question now...is it like an essay question?? has there been any examples of it before? is it in the specimen?
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    (Original post by NatashaG)
    pretty much.. :P

    barley seeds sprout turning starch on the seeds into sugar, then you add hops to give flavour, then you mix it with yeast and let them respire to they reproduce and stuff then you seal fermenter and warm it so yeaast can respire anaerobically and produce ethanl and CO2, then you clarify it adding chemicals that settle the yeast....then you pasteurise beer by heating to 70 degrees for 15 secs to kill micro-organisms then you let it cool down, then you just bottle it

    Describe the effect light intensity has on rate of photosynthesis?
    You can stop if this isn't helping you

    The stronger the light intensity the faster the rate of photosynthesis up until a certain point, where CO2 levels and temp will be the limiting factor.

    Describe how the transport vessels.in plants help the structure of a plabte
    (Original post by 123..help me)
    Thanks....I amso worried about the 10 marks question now...is it like an essay question?? has there been any examples of it before? is it in the specimen?
    It's data analysis really... And it's not one question, it's a whole section. It's in the specimen yeah
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    (Original post by NatashaG)
    pretty much.. :P

    barley seeds sprout turning starch on the seeds into sugar, then you add hops to give flavour, then you mix it with yeast and let them respire to they reproduce and stuff then you seal fermenter and warm it so yeaast can respire anaerobically and produce ethanl and CO2, then you clarify it adding chemicals that settle the yeast....then you pasteurise beer by heating to 70 degrees for 15 secs to kill micro-organisms then you let it cool down, then you just bottle it

    Describe the effect light intensity has on rate of photosynthesis?
    Hey...Do you need to to no how diff types of alchol products are made?
    Also I wanted to ask you...what is the effect of the prescence/absence of oxygen during fermentation? I was a bit confused about that bit....

    I thought that oxygen was present at the start of the fermentation to allow yeast to respire using it and as a result divide and reproduce more yeast and then oxygen is taken away leaving the yeast to react with the glucose to form alcohol nd co2...m i right?
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    Hey

    this is a really good idea!!

    i have been reading through the posts and noticed that i need to revise

    i will join in on...well ...friday night! .. after my psychology exam

    Ryan
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    (Original post by L'Evil Fish)
    You can stop if this isn't helping you

    The stronger the light intensity the faster the rate of photosynthesis up until a certain point, where CO2 levels and temp will be the limiting factor.

    Describe how the transport vessels.in plants help the structure of a plabte


    It's data analysis really... And it's not one question, it's a whole section. It's in the specimen yeah
    oh..kk so it's just like any other question?? split up as a b c d?
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    (Original post by ryanb97)
    Hey

    this is a really good idea!!

    i have been reading through the posts and noticed that i need to revise

    i will join in on...well ...friday night! .. after my psychology exam

    Ryan
    Instead of spamming about English?:mmm:

    :lol:

    Yeah, it's a goodway I think
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    (Original post by 123..help me)
    Hey...Do you need to to no how diff types of alchol products are made?
    Also I wanted to ask you...what is the effect of the prescence/absence of oxygen during fermentation? I was a bit confused about that bit....

    I thought that oxygen was present at the start of the fermentation to allow yeast to respire using it and as a result divide and reproduce more yeast and then oxygen is taken away leaving the yeast to react with the glucose to form alcohol nd co2...m i right?
    yeah you're perfectly right yeast needs to respire anaerobically to produce ethanol and co2 and needs oxygen to reproduce pretty much it!

    and no just beer, although you have to know that to make spirits you need to distill the alcohol as yeast can't cope with high levels of alcohol toxicity
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    (Original post by L'Evil Fish)
    You can stop if this isn't helping you

    The stronger the light intensity the faster the rate of photosynthesis up until a certain point, where CO2 levels and temp will be the limiting factor.

    Describe how the transport vessels.in plants help the structure of a plabte
    umm the phloem allows the movement of sugars up and down the plant to different tissues in the plant and the xylem allows water and soluble substances to move up the plant from the roots to leaves....not sure if this is answering your question or not hahaha


    and How is yoghurt made?
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    (Original post by NatashaG)
    umm the phloem allows the movement of sugars up and down the plant to different tissues in the plant and the xylem allows water and soluble substances to move up the plant from the roots to leaves....not sure if this is answering your question or not hahaha


    and How is yoghurt made?
    I meant like:

    Xylem provides support in stem and that but okay

    Oh gosh... Can't remember exact details and I don't want to cheat...

    Pass. How is yoghurt made?
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    (Original post by L'Evil Fish)
    I meant like:

    Xylem provides support in stem and that but okay

    Oh gosh... Can't remember exact details and I don't want to cheat...

    Pass. How is yoghurt made?

    Oh haha I was confused so just guessed :P

    Milk is pasteurised to kill any harmful bacteria in it bacteria is added to millk it feeds on the lactose in the milk and produces lactic acid which thickens the yoghurt and gives it a sharp taste, then it's sampled and flavourings, colours added ...
    might of missed out a step not sure

    heart transplant vs pacemaker or valves?
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    (Original post by NatashaG)
    Oh haha I was confused so just guessed :P

    Milk is pasteurised to kill any harmful bacteria in it bacteria is added to millk it feeds on the lactose in the milk and produces lactic acid which thickens the yoghurt and gives it a sharp taste, then it's sampled and flavourings, colours added ...
    might of missed out a step not sure

    heart transplant vs pacemaker or valves?
    Hmmm... I wouldn't know unless I checked the book

    Heart Transplant = Risky, danger of rejection, needs to be in right conditions, needs to be done fast, consent is an issue, immune system weaken with suppressants. But won't.need replacing

    Pacemaker/Valves = cheaper, quicker, easier, however could need replacing

    Explain how a hole in the heart affects blood flow?
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    (Original post by L'Evil Fish)
    Hmmm... I wouldn't know unless I checked the book

    Heart Transplant = Risky, danger of rejection, needs to be in right conditions, needs to be done fast, consent is an issue, immune system weaken with suppressants. But won't.need replacing

    Pacemaker/Valves = cheaper, quicker, easier, however could need replacing

    Explain how a hole in the heart affects blood flow?
    It means some de-oxygenated blood will flow into the oxygenated blood and then will be pumped round the body from the aorta, decreasing the amount of oxygen in the blood flow and therefore heart has to work harder to supply cells with oxygen

    explain how insulin is produced using genetic engineering?
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    I feel so unprepared reading through the posts.

    Does anyone else have history on the same day too?
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    (Original post by NatashaG)
    It means some de-oxygenated blood will flow into the oxygenated blood and then will be pumped round the body from the aorta, decreasing the amount of oxygen in the blood flow and therefore heart has to work harder to supply cells with oxygen

    explain how insulin is produced using genetic engineering?
    :yep:

    The insulin gene is found, and isolated and then cut out with restriction enzymes. (sticky ends!)

    The plasmid(?) also has a section removed from it

    Ligase(?) is used to put the DNA strand into the plasmid gap so the sticky ends stick together...

    It reproduces to make medicine, insulin gene...

    Explain the advantages and disadvantages of intensive and organic farming.
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    Intensive

    +
    You get more product
    Don't need as much space to create same amount of product as organic
    -
    ethical issues, animal cruelty, they have no room
    Pesticides, fertilisers, herbicides can all run off fields and pollute drinking water
    Expensive to use pesticides/ fertilisers/ herbicides


    Organic

    +
    You don't have to buy expensive pesticides etc...
    Increase in biodiversity
    More ethical in terms of animals
    Less harm to environment because no risk of polluting water supplies

    -
    Less efficient
    You need more land
    It's very expensive



    what are the advantages of using biofuels?
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    (Original post by NatashaG)
    Intensive

    +
    You get more product
    Don't need as much space to create same amount of product as organic
    -
    ethical issues, animal cruelty, they have no room
    Pesticides, fertilisers, herbicides can all run off fields and pollute drinking water
    Expensive to use pesticides/ fertilisers/ herbicides


    Organic

    +
    You don't have to buy expensive pesticides etc...
    Increase in biodiversity
    More ethical in terms of animals
    Less harm to environment because no risk of polluting water supplies

    -
    Less efficient
    You need more land
    It's very expensive



    what are the advantages of using biofuels?
    Carbon neutral, as the co2 emissions are accounted for by the plant's photosynthesis... More environmentally friendly, although it's less energy than fossil fuels?

    What haven't we done now? We've done quite a bit
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    (Original post by L'Evil Fish)
    Describe how the transport vessels.in plants help the structure of a plabte

    what is that?

    Ryan
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    (Original post by ryanb97)
    what is that?

    Ryan
    Plant*
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    (Original post by L'Evil Fish)
    Plant*
    oh ok... i thought i missed a whole topic there

    going to get in some good B5 revision....

    Ryan
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    (Original post by ryanb97)
    oh ok... i thought i missed a whole topic there

    going to get in some good B5 revision....

    Ryan
    Haha, plabtes

    B5 is so big
 
 
 
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