Cell membranes

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    • #3437
      Aerlinn
      Participant

      Many biological functions depend on the properties of membranes. Give 2 reasons why alcohol is absorbed more rapidly from the gut than most foods eaten at the same time.
      Also, suggest why a breathalyser is able to give a relatively accurate indication of blood alcohol level.
      Some help, please? All this in terms of cell membranes, of course 🙂

    • #39218
      Poison
      Participant

      As much as I know, for your first question, alcohol is a small molecule that’s why it is taken in quickly.
      I don’t know about your second question. I would like to learn too. 🙂

    • #39227
      MrMistery
      Participant

      Our good friend etilic alcohol-CH3CH2OH- is quite a small molecule, and also a main reason for the fast absorbtion speed is the fact that it is non-polar and can pass directly throught the membrane, it doesn’t need a transport protein

    • #39541
      blindcat35
      Participant

      there r alot of reason to expland why alcohol can adsorp rapidly than food
      1 . it is small mole….
      2 . we drink alot in one time it make high concentration
      3 when ancohol take in neuron receptor it will increase metabolism to absorpt alot …

    • #39601
      Dr.Stein
      Participant

      Because alcohol can easily diffuse thru lipid membrane of cells.

      What is "breathalyser"? 😕

    • #39634
      MrMistery
      Participant

      probably those things the police use, you exhale into it and it shows how much you had to drink(answer: it comes from the blood in the lungs..)

    • #39635
      Poison
      Participant

      Blood to the lungs? Do you give out alcohol together with CO2 or something like that?

    • #39637
      MrMistery
      Participant

      yes, alcohol "evaporates" out of your lungs along with CO2 and water…

    • #39638
      2810712
      Participant

      means you give out alcohol vapours with exhelant? And you alcohol can easily pass out the lung-cell-membranes in same way. And lung also has large surface are as digestive tract has.So alcohol’s exhaling is similar to its fast intake from digestive tract.

      Shrei

    • #39639
      Poison
      Participant
      quote MrMistery:

      yes, alcohol “evaporates” out of your lungs along with CO2 and water…

      Thanks. I learnt something new today. 😉

    • #39691
      blindcat35
      Participant

      which way ancohol digest ??? in any way
      1 evaporate at lung ( so drink and speak we can drink alot !
      2 liver
      3 kiney??
      ???
      ???
      anyone know more ?? tell me

    • #39776
      Poison
      Participant

      You do not "digest" alcohol. It is changed into simpler substances,that are not foreign for the body, by liver.
      And if the evporation rate was enough, you didn’t need to speak, you can just breath like you always do. 🙂

    • #39806
      2810712
      Participant

      which way ancohol digest ??? in any way
      1 evaporate at lung ( so drink and speak we can drink alot !
      2 liver
      3 kiney??
      ???
      ???
      anyone know more ?? tell me

      – alcohol is directly absorbed through the digestive tract, then through portal vein it goes to live and then as Poison said it gets converted into less ‘poisonous’ things.:shock:

      😆

      And if you drink and speak / breathe normally , u r just wasting ur money[ if it is urs] beacuase the extra ‘effect’ of that extra drunk alcohol won’t be there. So there is natural limit to the ‘effect’. 🙄

      hrushikesh

    • #39839
      Dr.Stein
      Participant
      quote MrMistery:

      yes, alcohol “evaporates” out of your lungs along with CO2 and water…

      The proper term is "hydroscopic", alcohol (except methanol) attracts and absorbs water 8)

    • #39982
      Aerlinn
      Participant

      So… you’re saying breathalysers are effective because alcohol evaporates out of the lungs along with water and CO2…? It comes out with your breath, so the breathalyser picks it up? If that’s a yes… why (does it end up evaporating) ?

    • #39993
      Dr.Stein
      Participant

      I asked you once again, what is "breathalyser" 😕

    • #40000
      Aerlinn
      Participant

      Well, as someone said earlier on, it’s given to you by police to check how much you’ve had to drink, whether or not you’re over the limit. It measures blood alcohol content.

    • #40127
      2810712
      Participant

      breath+’lyse‘r

      hrushikesh

    • #40151
      Aerlinn
      Participant

      ??

      So, can anyone answer my questions? (above)

    • #40185
      canalon
      Participant
      quote 2810712:

      breath+’lyse‘r

      No. Comes from the contraction of "Breath" and "Analyser". Could also be called ethylometer (From ethyl acohol, or ethanol, and meter)

      quote Aerlinn:

      ??

      So, can anyone answer my questions? (above)

      Well if you read carefully it has been done.

    • #40250
      Dr.Stein
      Participant
      quote Canalon:

      quote 2810712:

      breath+’lyse‘r

      No. Comes from the contraction of “Breath” and “Analyser”. Could also be called ethylometer (From ethyl acohol, or ethanol, and meter)

      As I thought before 😉 IMO, I prefer "Breath-analyser" (without any word contraction) rather than "Breathlyser" because the meaning will change after all 8) You know, "analyse" and "lyse" is totally different.
      Is that term official? If not, I suggest to stop using the contraction version. If it is official, I suggest the nomenclature comittee to stop using the contraction version 😆

    • #40277
      Aerlinn
      Participant

      If my main questions have been answered, I havent picked all of it up yet because they’re scattered in bits and pieces, some that I dont comprehend…

      In my last post, I meant these questions, Canalon

      quote :

      So… you’re saying breathalysers are effective because alcohol evaporates out of the lungs along with water and CO2…? It comes out with your breath, so the breathalyser picks it up? If that’s a yes… why (does it end up evaporating) ?

      [/quote]

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