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OCR F211/F212 AS Biology Retake 2016 Watch

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    (Original post by Hunnybeebee)
    Glad I'm not alone, very true with ocr chemistry true <\3

    Can someone outline all the chemicals in nicotone that cause particular illnessess. Like I know it's tar for cancer but which chemicals do what?

    Posted from TSR Mobile
    Tar also settles on the linings of the airways and damages/paralyses the cillia cells so they can't remove mucus and bacteria in the mucus as well as increasing the diffusion distance for gaseous exchange.

    Nicotine makes platelets sticky which increases your likelihood of having a blood clot - these can both increase the risk of having either atherosclerosis or a stroke.

    Carbon Monoxide combines with haemoglobin to form carboxyhaemoglobin, which is permanent. This will reduce the O2 carrying capacity of the blood.

    As a result of the Nicotine and CO, the blood pressure is increased which can damage the lining of blood vessels. This causes an atheroma to form as low density lipoproteins (unsaturated fat, cholesterol and protein) are deposited in the wall along with fibres, platelets and dead blood cells. This narrows the artery lumen, reducing blood flow. As a result, you can end up with coronary heart disease and potentially suffer from angina, myocardial infarction or even heart failure if the plaque is in a coronary artery.

    This is quite brief but if there's anything else then just ask or PM me
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    (Original post by NzUddin)
    Hi all!
    I've attached my own personal answers to the entire specification, it's VERY condensed but hopefully someone will benefit from it;
    Day before the exam, wish you all the best!

    -Nz ^_^
    You are such a life saver! you don't happen to have something similar for f214/5
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    (Original post by smozsolution)
    Tar also settles on the linings of the airways and damages/paralyses the cillia cells so they can't remove mucus and bacteria in the mucus as well as increasing the diffusion distance for gaseous exchange.

    Nicotine makes platelets sticky which increases your likelihood of having a blood clot - these can both increase the risk of having either atherosclerosis or a stroke.

    Carbon Monoxide combines with haemoglobin to form carboxyhaemoglobin, which is permanent. This will reduce the O2 carrying capacity of the blood.

    As a result of the Nicotine an CO, the blood pressure is increased which can damage the lining of blood vessels. This causes an atheroma to form as low density lipoproteins (unsaturated fat, cholesterol and protein) are deposited in the wall along with fibres, platelets and dead blood cells. This narrows the artery lumen, reducing blood flow. As a result, you can end up with coronary heart disease and potentially suffer from angina, myocardial infarction or even heart failure if the plaque is in a coronary artery.

    This is quite brief but if there's anything else then just ask or PM me
    Thank you!!!!!!

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    (Original post by annaj97)
    I always manage to avoid every mark in the "describe the data" questions. I guess the best bet is to just state the obvious first and then write as much as you can... then guess the rest😂
    Step 1: state the obvious
    Step 2: manipulate some data (have a calculator)
    Step 3: identify any anomalies

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    (Original post by Hunnybeebee)
    Step 1: state the obvious
    Step 2: manipulate some data (have a calculator)
    Step 3: identify any anomalies

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    I'll try that tomorrow, thanks!😁
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    Just checking, the exam is pm?
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    (Original post by annaj97)
    Just checking, the exam is pm?
    yup 13:30
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    (Original post by mizzyportia)
    You are such a life saver! you don't happen to have something similar for f214/5

    Could you send me a link 😂please


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    (Original post by mizzyportia)
    You are such a life saver! you don't happen to have something similar for f214/5
    Haha, you're welcome!
    And not just yet, still working on them! I'll post them once I'm done with them ^_^
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    (Original post by NzUddin)
    Haha, you're welcome!
    And not just yet, still working on them! I'll post them once I'm done with them ^_^
    Thank you! I printed off your notes, perfect for last minute. To the point!
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    (Original post by NzUddin)
    Haha, you're welcome!
    And not just yet, still working on them! I'll post them once I'm done with them ^_^
    Thank you
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    (Original post by NzUddin)
    Haha, you're welcome!
    And not just yet, still working on them! I'll post them once I'm done with them ^_^
    Where are the files for your notes?

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    (Original post by Hunnybeebee)
    Where are the files for your notes?

    Posted from TSR Mobile
    The F212 notes are on page 23
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    (Original post by NzUddin)
    Haha, you're welcome!
    And not just yet, still working on them! I'll post them once I'm done with them ^_^
    What do you mean by xyz in your notes? :P
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    (Original post by harryheych)
    The F212 notes are on page 23
    Ah poop im using my phone haha

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    See you on the other side guys

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    How did everyone find it? ::yep:

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    (Original post by AfroBella)
    How did everyone find it? ::yep:

    Posted from TSR Mobile


    Hard ☹️


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    what was that! i'm going to fail
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    Not the best they included so much
 
 
 
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