Diffusion and Osmosis

Front

What is diffusion?

Back

Diffusion is the process by which particles spread from an area of high concentration to an area of low concentration.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is a semi-permeable membrane?

Back

A semi-permeable membrane is a barrier that allows certain substances to pass through while blocking others.

Front

What are lipids?

Back

Lipids are organic compounds that are insoluble in water and are a major component of cell membranes.

Front

What is the role of proteins in the cell membrane?

Back

Proteins in the cell membrane help with transport, communication, and structural support.

Front

What happens to water in a hypertonic solution?

Back

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

Front

What happens to water in a hypotonic solution?

Back

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

Front

What is the kinetic energy of particles?

Back

Kinetic energy is the energy that particles possess due to their motion, which drives diffusion.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.

Front

What is concentration gradient?

Back

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