Question

8/29 cfu - cells, cell membrane and transport (l)
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 and divide
water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane
enzymes move across the plasma membrane until the cell has completed metabolism
ions move across the plasma membrane until the inside of the cell has a higher concentration of positive charges

Explanation:

Osmosis is the diffusion of water across a semi - permeable membrane from an area of lower solute concentration to an area of higher solute concentration until equilibrium is reached. In an animal cell, water molecules move across the plasma membrane to equalize solute concentrations on both sides. Sugar molecule movement is related to energy - related processes like cellular respiration, enzyme movement is related to metabolic reactions, and ion movement is related to electrical potential and other physiological processes, not osmosis.

Answer:

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