Question

how does the cell membrane use diffusion to help the cell get the materials and nutrients it needs to survive? a it uses energy to push materials into the cell. b it lets materials move from high concentration to low concentration. c it blocks all materials from coming in or out. d it stores nutrients until the cell is ready to divide. how does osmosis help fill the large central vacuole in a plant cell that is not very full? a water moves from low concentration to high concentration into the vacuole. b oxygen is pumped into the vacuole using energy. c proteins carry water out of the vacuole. d the vacuole shrinks so the cell uses less water.

Explanation:

Diffusion is the movement of substances from an area of high - concentration to an area of low - concentration. Osmosis is the diffusion of water across a semi - permeable membrane from an area of low solute concentration (high water concentration) to an area of high solute concentration (low water concentration).

Answer:

1. B. It lets materials move from high concentration to low concentration.
2. A. Water moves from low concentration to high concentration into the vacuole.