Unit 3 Lesson 3 - Osmosis & Tonicity Practice

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

Define hypotonic solution.

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of a cell, causing water to enter the cell and potentially leading to swelling or bursting.

Front

Define hypertonic solution.

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of a cell, causing water to leave the cell and leading to shrinkage.

Front

What is an isotonic solution?

Back

An isotonic solution has an equal concentration of solutes inside and outside the cell, resulting in no net movement of water.

Front

What is the role of a solute in a solution?

Back

A solute is a substance that is dissolved in a solvent to form a solution.

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from an area of high concentration to an area of low concentration.

Front

What does equilibrium mean in the context of diffusion?

Back

Equilibrium is the state reached when molecules are evenly distributed in a space, resulting in no net movement.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water enters the cell, which may cause it to swell and potentially burst.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water leaves the cell, causing it to shrink.

Front

What is a semipermeable membrane?

Back

A semipermeable membrane is a barrier that allows certain molecules to pass through while blocking others.