Diffusion and Osmosis 2024

Front

What is diffusion?

Back

Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until they are evenly distributed.

Front

What does permeable mean?

Back

Permeable means that a material allows substances to pass through it.

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 equilibrium in the context of cells?

Back

Equilibrium is the state where the concentration of substances is equal inside and outside the cell.

Front

What happens to a cell in a hypertonic solution?

Back

In a hypertonic solution, water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

In a hypotonic solution, water moves into the cell, causing it to swell and potentially burst.

Front

What is an isotonic solution?

Back

An isotonic solution is one where the concentration of solutes is the same inside and outside the cell, resulting in no net movement of water.

Front

What is active transport?

Back

Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, using energy.

Front

What is the role of a selectively permeable membrane?

Back

A selectively permeable membrane allows certain substances to pass while blocking others, helping to maintain homeostasis in the cell.

Front

How does temperature affect diffusion?

Back

Higher temperatures increase the energy of molecules, leading to faster diffusion rates.