Cell Membrane and Cell Transport

Front

What is Exocytosis?

Back

The process by which large particles, often waste materials, are released from the inside of the cell to the outside.

Front

What are the phosphate heads of the lipid bilayer?

Back

Hydrophilic, meaning they are attracted to water.

Front

What does a cell need to transport particles by active transport?

Back

Energy, usually in the form of ATP.

Front

What happens to a cell in a 5% salt solution when placed in a 10% salt solution?

Back

The cell will shrink due to osmosis.

Front

What type of cellular transport is represented by the release of materials from a cell?

Back

Exocytosis.

Front

Define Osmosis.

Back

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 function of the cell membrane?

Back

To protect the cell and regulate what enters and exits the cell.

Front

What is the difference between passive and active transport?

Back

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

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is Endocytosis?

Back

The process by which cells take in large particles or liquids by engulfing them.