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Patch-Clamp instruments allow researchers to measure the opening and closing of a single channel in a...

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Physics

Patch-Clamp instruments allow researchers to measure the openingand closing of a single channel in a membrane. A typicalacetylcholine receptor channel passes about 5 pA (picoamperers) ofionic current over a period of 5 msec at -60mV. Given that anelectric current of 1 A is about 6.2x10^18 electrical charges persecond, how many ions (potassium or sodium) pass through thechannel during the time that it is open?

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3.8 Ratings (775 Votes)
Each potasium or sodium ion is a 1 charge particle Its meanthat every ion is a single charged    See Answer
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