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3 Cards in this Set
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- Back
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rod cells in the dark |
•Light falls onto rhodopsin •Breaks down into retinal and opsin •Opsin activates series of membrane bound reactions ending in the hydrolysis of a molecule attached onto the cation channels (for outer seg) •Closes cation channels •Influx of Na+ into rod decreases // outer seg continues to pump out Na+ •Inside of cell becomes more -ve •Hyperpolarised •Release of glutamate stops •Depolarisation of bipolar neurone |
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rod cells in light |
Bensnsn |
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Bejene |
Ebebsnnw |
