Depolarisation
A membrane depolarization is a decrease in the potential difference between the outside of a cell and the intracellular medium, on either side of the plasma membrane, most often due to a positive ion input (Na +, Ca ++, etc.) inside the cell or sometimes due to the release of chloride ions, and involved in the mechanisms of transmission of nerve impulses and muscle contraction.
Hyperpolarization:
The depolarization is followed by a repolarization, thanks to the output of an equivalent quantity of ions k + which causes the return to the state of equilibrium. Then there is a hyperpolarization due to the output of more k + ions than Na + ions, because the potassium channels are slow to close. Finally there is a return to the resting potential.
Hyperpolarization is a term opposite to that of depolarization, it refers to values lower than that observed during the resting potential.
If the doctor recommends dialysis
for someone who has kidney disease and he goes for a home-treatment option, he most
likely chose hemodialysis. Home hemodialysis (HHD) is the option that offers
freedom to be treated outside of the dialysis center.
C. During metaphase 1, homologous chromosomes align as tetrads in the middle of the spindle.
A B/c inside the cell is most similar to the digestive system
Meiosis would be most beneficial to a species in a situation where an organism falls prey to many efficient predators. Answer:a)Meiosis: numerous daughter cells produced would increase the species' population.
The species needs to evolve quickly, and the best way to do that is to shuffle existing mutations through sexual reproduction