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    I'm struggling with two multiple choice questions. The way they are set out, you don't get any marks unless all the answers are right so I don't even know which I'm doing wrong.



    Which of the following are false concerning the anatomy of the liver and gall bladder?

    -Sinusoids within the liver lobules are very permeable

    -Kupffer cells reside within the sinusoids of a liver lobule and are responsible for phagocytosis of old red and white blood cells, bacteria and other foreign matter.

    -The hepatocytes receive oxygen from oxygenated blood in the hepatic artery.

    -The gall bladder has a muscular wall which is able to contract and eject bile into the cystic duct.

    -The hepatocytes receive nutrients from the gastrointestinal tract via the hepatic vein.

    -Heptaocytes are specialised endothelial cells.

    -Tissue fluid flows through sinusoids in the liver lobules.

    3 marks.




    Which of the following is true?

    -Hepatocytes can convert glycogen to glucose in a process called glycogenesis

    -Insulin enables hepatocytes to convert glucose into glycogen

    -Hepatocytes are able to synthesise glucose from fats, lactic acid or amino acids, during starvation.

    -After a meal, hepatocytes convert amino acids to glucose.

    -The liver is able to make fat by converting excess glucose to glycerol + fatty acids which are then converted to fat by the process of lipogenesis.

    -The liver converts some fat to ketone bodies which can be used as a source of ATP.

    -Insulin stimulates lipolysis in hepatocytes.

    4 marks.


    I know it seems like a lot of help but I've been trying for a while.
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    False

    Hepatocytes can convert glycogen to glucose in a process called glycogenesis

    (glycogenesis is the process of glycogen synthesis, in which glucose molecules are added to chains of glycogen for storage.)

    The liver converts some fat to ketone bodies which can be used as a source of ATP

    ( I think the liver converts some fats to ketone bodies but I dont no about the source of ATP. I can't see it been used as an energy source straight away rather turned into something else before the ATP. If the ketone Bodies was to give Off some H+ then the ATP coule be made. Im sorry im not to sure on that one.)


    True

    Insulin enables hepatocytes to convert glucose into glycogen

    hepatocytes convert amino acids to glucose.

    The liver is able to make fat by converting excess glucose to glycerol + fatty acids which are then converted to fat by the process of lipogenesis.

    Insulin stimulates lipolysis in hepatocytes
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    (Original post by Geek1337)
    I'm struggling with two multiple choice questions. The way they are set out, you don't get any marks unless all the answers are right so I don't even know which I'm doing wrong.



    Which of the following are false concerning the anatomy of the liver and gall bladder?

    -Sinusoids within the liver lobules are very permeable

    -Kupffer cells reside within the sinusoids of a liver lobule and are responsible for phagocytosis of old red and white blood cells, bacteria and other foreign matter.

    -The hepatocytes receive oxygen from oxygenated blood in the hepatic artery.

    -The gall bladder has a muscular wall which is able to contract and eject bile into the cystic duct.

    -The hepatocytes receive nutrients from the gastrointestinal tract via the hepatic vein.


    -Heptaocytes are specialised endothelial cells.


    -Tissue fluid flows through sinusoids in the liver lobules.


    3 marks.






    I know it seems like a lot of help but I've been trying for a while.
    well those are false - the second one should have been obvious!
    The nutrients from the GI tract come from the portal vein!

    Let me know if that's right? I guess the last is wrong because sinusoids are like blood vessels, and as such it's not really tissue fluid when it's flowing through them!

    will be interesting to see if that makes that section correct.
 
 
 
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