Biology, 08.04.2020 05:06 yeetmaster7688

Following repolarization, the neuron may become slightly hyperpolarized before it re-establishes its resting membrane potential. Hyperpolarization is due to a difference between how the voltage-gated Na+ and K+ channels work. What is this difference?

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Answer from: allisonchorath6971

Membrane potential

Explanation:

Membrane potential represents charge difference across the membrane, all biological cells are negative inside (cytoplasm) and positive outside (due to difference in ionic distribution) In a typical neuron cell membrane potential of cytoplasm is negative at rest (when no stimulus is applied) hence called resting membrane potential Resting membrane potential of excitable cells is established by Na+ and K+pump Repolarization starts with the efflux of K+ by the opening of voltage gated K+ channels Voltage gated K+ channels starts to open when voltage gated Na+ channels becomes inactive Hyperpolarization occurs due to excessive efflux of K+ by voltage gated K+ channelsAdditional efflux of K+ occurs due to slow inactivation of voltage gated K+ channels

Answer from: Quest

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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