Question

a cell is placed in an isotonic solution. how does the cell maintain homeostasis in this environment?
a. there is no movement of water molecules into or out of the cell because the concentrations of solute particles inside and outside the cell are the same.
b. water will move across the cell membrane to the inside of the cell because the cell has a higher concentration of solute particles than the solution.
c. water will move across the cell membrane to the outside of the cell because the solution has a higher concentration of solute particles than the cell.

Explanation:

En una solución isotónica, la concentración de solutos es la misma dentro y fuera de la célula. La osmosis (movimiento de agua a través de una membrana semipermeable) ocurre hasta que se alcanza un equilibrio. En este caso, el equilibrio ya existe, por lo que el movimiento neto de agua es cero. Esto significa que el volumen de la célula se mantiene constante, lo que es esencial para el mantenimiento de la homeostasis celular.

Answer:

A. There is no movement of water molecules into or out of the cell because the concentrations of solute particles inside and outside the cell are the same.