Respuesta :
A change in a cell's membrane potential, such that the inside of the cell becomes more positive, is referred to as a depolarization whereas if it becomes more negative it is referred to as hyperpolarization.
Explanation:
Depolarization is a transition in the cell where the cell experiences a move in the allocation of electric charge, culminating in less negative load within the cell. The role of many cells, cell-to-cell contact and an organism's overall physiology are important.
Hyperpolarisation is a shift in the membrane energy of a cell that makes it more negative. It is the inverse of a depolarization. While the neuron is hyperpolarized, it is in a refractory cycle that lasts approximately two milliseconds, at that time the neuron can not produce potential for action taken.
A change in a cell's membrane potential, such that the inside of the cell becomes more positive, is referred to as a depolarization whereas if it becomes more negative it is referred to as hyperpolarization.
Explanation:
The process of producing respective electric charges (positive or negative) in relation to the charges inside a cell to that outside the cell in the surrounding environment is called polarization of cells.
Generally, a cell is polarized when it has negative charges inside the cells and positive outside the cell membrane. This stage is the resting potential of a cell, typically a nerve cell or neuron. This potential ranges from - 60 millivolts to about -70 millivolts.
Depolarization results in reversal of these charges when a neuron receives a stimulus which leads to changes in the membrane permeability, sodium channel opens and an increased amount of sodium ions enters the cells. This increases the positive charges inside the cells compared to that of the outside.
Hyperpolarization is the reversal of depolarization occurring due to closing of sodium channel and opening of potassium channel and increases the negative charges and the potential.
