Fast and Curious: Cell Transport

Front

What does it mean when a cell membrane is described as semipermeable?

Back

It means that the cell membrane allows some substances to pass through while blocking others.

Front

What is active transport?

Back

Active transport is the process of moving molecules from an area of low concentration to an area of high concentration using energy.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules from an area of high concentration to an area of low concentration.

Front

What is equilibrium in the context of cell transport?

Back

Equilibrium is reached when the concentration of a substance is the same inside and outside of the cell.

Front

What is exocytosis?

Back

Exocytosis is a form of active transport where large particles exit a cell, requiring energy.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration without the use of energy.

Front

What role does the cell membrane play in transport?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.

Front

What is passive transport?

Back

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

Front

What is the difference between active transport and passive transport?

Back

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

Front

What is the significance of concentration gradients in cell transport?

Back

Concentration gradients drive the movement of substances; molecules move from areas of high concentration to low concentration.