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What is facilitated diffusion ?...

What is facilitated diffusion ?

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Knowledge Check

  • In facilitated diffusion

    A
    the hydrolysis of ATP is required to facilitate diffusion
    B
    specific substances are transported against their concentration gradient.
    C
    membrane phospholipids create a channel that permits diffusion of a specific substance
    D
    a membrane protein binds to specific solute and then undergoes a conformational change.

  • What is correet about the movement of substance across the membrane in facilitated diffusion?

    A
    it is an active transport
    B
    it cause transport of molecules from low concentration to high concentration
    C
    it is insensitive to inhibitors
    D
    it is a very specific transport

  • The rate of facilitated diffusion of a molecule does not continue to increase as concentration difference of molecules across the membrane increases. Why?

    A
    Facilitated diffusion needs the use of ATP
    B
    The transport protein must be of the channel type
    C
    As the concentration difference increases molecules interfere with one another
    D
    The transport must be of carrier type

    • Similar Questions

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    What do you understand by the term facilitated diffusion?

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    Which of the following is not true of the carrier molecules involved in facilitated diffusion?

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