Passive Transport

Front

What is Passive Transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy by the cell.

Front

Does passive transport require cell energy?

Back

No, passive transport does NOT require cell energy.

Front

What is diffusion?

Back

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

Front

In which direction do molecules move during diffusion?

Back

Molecules move from a high concentration to a low concentration.

Front

What is a hypertonic solution?

Back

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

Front

What is a hypotonic solution?

Back

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

Front

What is an isotonic solution?

Back

An isotonic solution has an equal concentration of solutes inside and outside the cell, resulting in no net movement of water.

Front

What does semi-permeable mean in relation to cell membranes?

Back

Semi-permeable means that the cell membrane allows certain substances to pass through while blocking others.

Front

What role does the cell membrane play in passive transport?

Back

The cell membrane controls the movement of materials entering and leaving the cell through passive transport.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a semi-permeable membrane from a region of low solute concentration to a region of high solute concentration.