Cell Transport

Front

What is active transport?

Back

Active transport is the movement of particles from an area of lower concentration to an area of higher concentration, requiring energy (ATP).

Front

What is passive transport?

Back

Passive transport is the movement of particles across a cell membrane without the use of energy, moving from an area of higher concentration to an area of lower concentration.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances, such as glucose, across the cell membrane.

Front

What is osmosis?

Back

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

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 until equilibrium is reached.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane is a barrier that allows certain substances to pass through while blocking others, crucial for maintaining homeostasis in cells.

Front

What role do transport proteins play in cell transport?

Back

Transport proteins assist in the movement of substances across the cell membrane, either by facilitated diffusion or active transport.

Front

What is the difference between active and passive transport?

Back

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

Front

What is the significance of concentration gradients in cell transport?

Back

Concentration gradients drive the movement of substances in and out of cells, influencing processes like diffusion and osmosis.

Front

What is the process of endocytosis?

Back

Endocytosis is the process by which cells engulf substances from the outside environment, bringing them into the cell in vesicles.