in which way are ligand-gated ion channels and leak channels similar? they move molecules by facilitated diffusion across the cell membrane they directly require energy in the form of atp to move molecules they do not require gradients to move molecules they are carrier proteins and never open to both sides of the membrane they function in secondary active transport

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16-12-2022
Biology

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in which way are ligand-gated ion channels and leak channels similar? they move molecules by facilitated diffusion across the cell membrane they directly require energy in the form of atp to move molecules they do not require gradients to move molecules they are carrier proteins and never open to both sides of the membrane they function in secondary active transport

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contexto1212 contexto1212 · Answer 1 · 2022-12-20T23:41:29-05:00

Passive channels, also known as leaky channels, are permanently open and constantly flow ions across them. Active channels have gates that allow them to open and close. Voltage-gated channels are active channels with gates that are regulated by voltage.

Gated ion channels include both voltage gated and ligand gated ion channels. They are required for appropriate post synaptic neuron activity. Ion channels that are voltage or ligand gated are transmembrane protein molecules.

By transferring molecules against a concentration or electrochemical gradient, active transport demands energy.

Active transport makes use of ATP (adenosine triphosphate), which is created by cellular respiration. Particles migrate through a cell membrane from a lower concentration to a greater concentration in active transport.

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