Cell Transport

Front

What is diffusion?

Back

Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration, resulting in an even distribution of particles.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, relying on concentration gradients.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane using energy in the form of ATP, often against a concentration gradient.

Front

What are membrane pumps?

Back

Membrane pumps are a type of active transport that uses transport proteins to move molecules across the cell membrane.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a greater solute concentration outside the cell compared to the inside, causing water to move out of the cell.

Front

What is a hypotonic solution?

Back

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

Front

What is an isotonic solution?

Back

An isotonic solution has equal solute concentrations inside and outside the cell, resulting in no net movement of water.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move molecules across the cell membrane.

Front

What role do transport proteins play in cell transport?

Back

Transport proteins assist in the movement of substances across the cell membrane, either passively or actively.