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    2 stimuli the eyes respond to?

    Sodium channels are inhibited. How does this affect Nerve impulses?

    A drug has a similar shape to acetylcholine how does this affect synaptic transmission?

    Explain the roles of protein channels in the presynaptic neuron.

    Any help would be much appreciated, had to skip over this chapter,
    Im beginning to regret taking 4 a-levels
    xD
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    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.

    You can also find the Exam Thread list for A-levels here and GCSE here. :dumbells:


    Just quoting in Puddles the Monkey so she can move the thread if needed
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    (Original post by Puddles the Monkey)
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    (Original post by NeedToGetAnA)
    2 stimuli the eyes respond to?

    Sodium channels are inhibited. How does this affect Nerve impulses?

    A drug has a similar shape to acetylcholine how does this affect synaptic transmission?

    Explain the roles of protein channels in the presynaptic neuron.

    Any help would be much appreciated, had to skip over this chapter,
    Im beginning to regret taking 4 a-levels
    xD
    Hi! Hope I'm not too late to reply.
    So protein channels allow calcium ions to enter the presynaptic neurone so as to trigger the vesicles with the neurotransmitter.

    A drug that has a similar shape to ACh would slow down the transmission as it would act as an inhibitor.

    And finally if sodium channels are inhibited then action potentials can't occur so nerve impulses aren't sent.

    I hope I've been of help ^^
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    (Original post by susanamaganga)
    Hi! Hope I'm not too late to reply.
    So protein channels allow calcium ions to enter the presynaptic neurone so as to trigger the vesicles with the neurotransmitter.

    A drug that has a similar shape to ACh would slow down the transmission as it would act as an inhibitor.

    And finally if sodium channels are inhibited then action potentials can't occur so nerve impulses aren't sent.

    I hope I've been of help ^^

    Thx,don't worry I wasn't in a hurry
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    glad I could help ^^
    (Original post by NeedToGetAnA)
    Thx,don't worry I wasn't in a hurry
 
 
 
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