Question

which statement describes the process of osmosis in an animal cell? sugar molecules move across the plasma membrane until the cell has enough energy to grow in size and divide. ions move across the plasma membrane until the inside of the cell has a higher concentration of positive charges. enzymes move across the plasma membrane until the cell has completed metabolism. water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane.

Explanation:

Osmosis is the movement of water molecules across a semi - permeable membrane (like the plasma membrane of an animal cell) from an area of higher water concentration to an area of lower water concentration until the concentrations are equal on both sides of the membrane. Sugar molecules moving across the plasma membrane is not osmosis but may be facilitated diffusion or active transport. Ions moving across the plasma membrane is related to ion transport mechanisms like ion channels or pumps. Enzymes do not move across the plasma membrane during osmosis.

Answer:

Water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane.