Exploring Cellular Transport Processes

Front

What is diffusion?

Back

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

Front

What is exocytosis?

Back

Exocytosis is the process by which a cell expels materials using vesicles.

Front

Define osmosis.

Back

Osmosis is the movement of water molecules through a selectively permeable membrane.

Front

What is the primary function of the cell membrane?

Back

The primary function of the cell membrane is to control what enters and leaves the cell.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

What role do transport proteins play in cellular transport?

Back

Transport proteins facilitate the movement of substances across the cell membrane, either by passive or active transport.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process by which molecules pass through the cell membrane via special proteins, without the use of energy.

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.

Front

What is the significance of concentration gradients in cellular transport?

Back

Concentration gradients drive the movement of substances during diffusion and osmosis, influencing how and when substances enter or exit the cell.

Front

What is endocytosis?

Back

Endocytosis is the process by which a cell takes in materials by engulfing them in a vesicle.