Osmosis and Diffusion

Front

What is osmosis?

Back

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

Front

What happens to cells when a person drinks salty water?

Back

The cells shrink because water moves out of the cells to balance the higher concentration of salt outside.

Front

What type of solution is best for a dehydrated patient?

Back

An isotonic solution is best as it increases fluid in the body without causing harm to the cells.

Front

During osmosis, water moves from _____ concentration to _____ concentration.

Back

Water moves from high concentration to low concentration.

Front

What is equilibrium in the context of osmosis?

Back

Equilibrium is the state when the concentration of water inside and outside of a cell is equal.

Front

Define diffusion.

Back

Diffusion is the movement of particles from an area of high concentration to an area of low concentration.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of a cell, causing the cell to swell.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of a cell, causing the cell to shrink.

Front

What role does the cell membrane play in osmosis?

Back

The cell membrane is selectively permeable, allowing only certain substances, like water, to pass through.

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 any type of particles.