Osmosis & Diffusion Flashcard 1

Front

What is diffusion?

Back

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

Front

What is osmosis?

Back

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

Front

What happens to a cell when water moves out of it during osmosis?

Back

The cell shrinks.

Front

What is a semipermeable membrane?

Back

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

Front

In which direction do water molecules move during osmosis?

Back

Water molecules move from an area of low solute concentration to an area of high solute concentration.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in concentration of a substance between two areas.

Front

What is an example of diffusion in everyday life?

Back

An example of diffusion is the spreading of perfume in a room.

Front

What factors affect the rate of diffusion?

Back

Factors that affect the rate of diffusion include temperature, concentration gradient, and the size of the molecules.

Front

How does temperature affect diffusion?

Back

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

Front

What is the difference between osmosis and diffusion?

Back

Osmosis specifically refers to the movement of water, while diffusion refers to the movement of solutes.