Question

diffusion through cell boundaries
in a solution, particles move constantly. they collide with one another and tend to spread out randomly. diffusion is the process by which molecules of a substance move from areas of higher concentration to areas of lower concentration. because diffusion depends upon random particle movements, substances diffuse across membranes without requiring the cell to use energy. even when equilibrium is reached, particles of a solution will continue to move across the membrane in both directions.
explain the process of diffusion using diagrams a & b.
explain the process of diffusion using diagrams c, make sure to use the vocab term equilibrium in your explanation?
think. you have a container with a semi - permeable membrane in the middle separating a left and right side. on the left side of the container is a high concentration of salt

Explanation:

For diagrams A & B: In diagram A, there is a higher concentration of particles on one side of the membrane. Diffusion causes particles to move from this area of high - concentration to the area of low - concentration on the other side of the membrane (as shown in diagram B), driven by random particle motion.
For diagram C: Equilibrium is reached when the concentration of particles is the same on both sides of the membrane. However, even at equilibrium, particles continue to move across the membrane in both directions due to their random motion.
For the container with semi - permeable membrane: Salt (solute) will diffuse from the left side (high concentration) to the right side of the container through the semi - permeable membrane until equilibrium is reached, where the salt concentration is equal on both sides.

for A & B: Particles move from high to low concentration across the membrane due to diffusion.

for C: At equilibrium, particle concentration is equal on both sides, but particles still move randomly across the membrane.
For the container: Salt will diffuse from the high - concentration left side to the right side until equilibrium is reached.

Answer:

for C: At equilibrium, particle concentration is equal on both sides, but particles still move randomly across the membrane.
For the container: Salt will diffuse from the high - concentration left side to the right side until equilibrium is reached.