The assisted transport of a molecule through the cell membrane in deprived of expenditure of energy is facilitated transport. It transports molecules via specific trans membrane integral proteins because of being passive the facilitated transport does not directly require chemical energy from ATP hydrolysis in the conveyance step itself but rather molecules and ions move down their concentration gradient.
The answer is D. It is incomplete and did not show all reactants and products.
~Alahna Wigfall
The lowest begins with the atom and the highest ends with the biosphere.
