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    I put circular strand of DNA is this right??
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    (Original post by Ordo)
    I cannot find it but I can make one
    Sure, link me?
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    (Original post by NK18444)
    I put circular strand of DNA is this right??
    Yeh, I forgot to put circular 😑
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    (Original post by Bennyab)
    You're over complicating it, the lactase hydrolysed triglycerides into fatty acids and glycerol hence the decrease in pH


    Posted from TSR Mobile
    Not the point
    Trigllyceride already has 3 Fatty acids and 1 Glycerol sochudrolysing them just seperates them. No net gain. Only water is added when hydrolysis takes place
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    Would circular chromosome be accepted??


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    (Original post by Biffalo_)
    Sure, link me?

    http://www.thestudentroom.co.uk/show....php?t=4122319
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    Was question about change in ph 2 marks?
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    (Original post by fugeefari)
    Was question about change in ph 2 marks?
    Just 1


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    (Original post by BigDaddy97)
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    The one with hydrolysis of triglyceride to fatty acids?
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    Hey guys for the ph meter, i put the ph meter will produce numerical data, so it is objective, wherea, the ph indicator is subjective ?
    Will this be right ?
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    (Original post by fugeefari)
    The one with hydrolysis of triglyceride to fatty acids?
    Yes, fatty acids are acidic so lower the pH
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    (Original post by jadder1224)
    Hey guys for the ph meter, i put the ph meter will produce numerical data, so it is objective, wherea, the ph indicator is subjective ?
    Will this be right ?
    Yes its correct. I put 'ph meter will give you more precise result' - would that still be right?
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    (Original post by Ordo)
    Yes its correct. I put 'ph meter will give you more precise result' - would that still be right?
    Sounds right to me, cos it gives you a precise number
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    (Original post by Hussain96)
    Would circular chromosome be accepted??


    Posted from TSR Mobile

    I think so. A circular bacterial chromosome is a bacterial chromosome in the form of a molecule of circular DNA. Any of these words - Circular chromosome/plasmid/loop of DNA/Circular DNA is correct.
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    I put it has no nucleus, the dna is free in the matrix
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    Just a quick question:

    For the questions On triglycerides and pH. I spoke about how the products of hydrolysis have a lower pH than the products which means that there is a higher concentration of H+ because I wasn't Certain if I should mention fatty acids or not. I know it's quite a bit of chemistry but would I at least get some marks since it is scientifically correct but doesn't use biological key terms.

    Also, is it ok to say for the question on why mitochondria comes from bacteria that it has a double membrane?
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    Guys, honestly what would you say the grade boundaries will be? To be honest i found it more difficult than last year
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    (Original post by jadder1224)
    I put it has no nucleus, the dna is free in the matrix
    It is right but I'm not sure tbh. You could get a mark.
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    Horrible paper
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    (Original post by nk18444)
    on the last question i talked about how oxygen is a small, fat soluble, uncharged molecule that can pass through the fluidity if the phosphlipid bilayer
    i put that the chloride ions are charged, water soluble and large therefore cannot diffuse through the membrane
    i talked about facilitated diffusion with carrier proteins and diffusion with water filled protein channels
    do you think this is okay for all 5 marks?
    I didn't like the paper. I enjoyed doing past papers for biol1 and this caught me off guard.

    Nk
    i wrote that too snapsss
 
 
 
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