Osmosis Review

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to enter the cell and potentially make it swell.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to leave the cell and potentially make it shrink.

Front

What is an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as the inside of the cell, resulting in no net movement of water.

Front

What does selectively permeable mean?

Back

Selectively permeable means that a membrane allows certain substances to pass through while blocking others.

Front

What is diffusion?

Back

Diffusion is the movement of solute particles from an area of high concentration to an area of low concentration.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane against their concentration gradient, requiring energy.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, the cell will swell as water enters due to the lower concentration of solutes outside the cell.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, the cell will shrink as water exits due to the higher concentration of solutes outside the cell.

Front

What is the role of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, maintaining homeostasis.