Cell Membrane and Transport Review

Front

What does 'selectively permeable' mean?

Back

A selectively permeable membrane allows some molecules to pass through while blocking others.

Front

Where will glucose be found after 24 hours in a cell experiment?

Back

Glucose will be found both inside and outside the cell.

Front

What color indicates the presence of starch in an artificial cell experiment?

Back

Blue-black indicates the presence of starch.

Front

What does Row 1 in a transport chart typically represent?

Back

Row 1 usually explains the movement of some molecules between the model cell and the solution.

Front

What is endocytosis?

Back

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

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel materials in vesicles.

Front

Define osmosis.

Back

Osmosis is the movement 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 the role of the cell membrane?

Back

The cell membrane protects the cell and regulates what enters and exits.

Front

What is passive transport?

Back

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

Front

What is active transport?

Back

Active transport is the movement of molecules against their concentration gradient, requiring energy.