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thedy
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Is there any reason,resting membrane potential is cca -70mV?because teacher asked us today,and it was not enough for him to say,that it is due concentrations of ions...What is the reason of this value?
Thanks
Thanks
Resting membrane potential is the electrical potential difference across the membrane of a cell when it is not actively sending or receiving signals. It is maintained by the uneven distribution of ions inside and outside the cell.
Resting membrane potential is measured using a technique called microelectrode recording, which involves inserting a small electrode into the cell to measure the voltage difference between the inside and outside of the cell.
The main factors that contribute to resting membrane potential are the selective permeability of the cell membrane to different ions, the concentrations of these ions inside and outside the cell, and the activity of ion pumps and channels.
Resting membrane potential is important because it is the baseline electrical state of a cell and is necessary for the proper functioning of many cellular processes, such as nerve and muscle cell signaling, nutrient uptake, and maintaining cell volume.
In response to stimuli, the resting membrane potential can change due to the opening and closing of ion channels, which allows ions to flow in and out of the cell and alter the electrical charge. This change in membrane potential is necessary for cells to send and receive signals and perform various functions.