Diffusion and Osmosis

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane.

Front

What does equilibrium mean in the context of diffusion?

Back

Equilibrium is the state where the concentration of molecules is equal on both sides of a membrane, resulting in no net movement.

Front

What is selective permeability?

Back

Selective permeability is the ability of a cell membrane to allow some substances to pass through while blocking others.

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 a concentration gradient?

Back

A concentration gradient is the difference in concentration of a substance across a space.

Front

How does temperature affect the rate of diffusion?

Back

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

Front

What is the role of the cell membrane in osmosis?

Back

The cell membrane controls the movement of water in and out of the cell during osmosis.

Front

What is a net movement in the context of diffusion?

Back

Net movement refers to the overall direction of movement of molecules, taking into account both the molecules moving in and out.