Osmosis and Diffusion

Front

What is diffusion?

Back

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

Front

Define osmosis.

Back

Osmosis is the diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain molecules or ions to pass through it while blocking others.

Front

What is the main difference between diffusion and osmosis?

Back

The main difference is that diffusion refers to the movement of all types of molecules, while osmosis specifically refers to the movement of water molecules.

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 equilibrium in the context of diffusion?

Back

Equilibrium is the state reached when the concentration of molecules is equal throughout a space, resulting in no net movement.

Front

How does temperature affect the rate of diffusion?

Back

Higher temperatures increase the kinetic energy of molecules, leading to a faster rate of diffusion.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules pass through a cell membrane via a specific carrier protein, without the use of energy.

Front

What role do concentration gradients play in diffusion?

Back

Concentration gradients drive the movement of molecules from areas of high concentration to areas of low concentration.