Cell Transportation Review!!!

Front

What does it mean that the cell membrane is semi-permeable?

Back

The cell membrane allows certain substances to pass through while blocking others, maintaining the internal environment of the cell.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What are the two types of transport across the cell membrane?

Back

Passive transport and active transport.

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 is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in large substances by engulfing them in a membrane.

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel large substances by vesicles fusing with the cell membrane.

Front

What role does the cell membrane play in homeostasis?

Back

The cell membrane regulates the movement of substances in and out of the cell, helping to maintain a stable internal environment.

Front

What is the function of transport proteins?

Back

Transport proteins assist in the movement of substances across the cell membrane, either by facilitating diffusion or by actively transporting molecules.

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 areas of low concentration in passive transport.