Question

1 what happens to an animal cell when it is placed in a very dilute external medium explain can diffusion lead to some consequences

Answer 1

Every solution has two components, solute (sugar, salt etc.) and solvent (water). The solute dissolves in the solvent and forms a solution. Here the animal cell is kept in dilute external medium that means hypotonic solution.

Hypotonic solution: In this solution the solute concentration is lower than that of the cell fluid concentration. As a result, water moves into the cell from the surrounding medium through a cell membrane. This results in causing the cell to swell and burst.