Cell Membrane and Cell Transport Review

Front

What is Exocytosis?

Back

The process of releasing large particles, often waste materials, from the inside of the cell to the outside.

Front

What type of transport does not require energy?

Back

Passive transport.

Front

What are the phosphate heads of the lipid bilayer?

Back

Hydrophilic.

Front

In a hypotonic solution, which way will water move?

Back

Water will move into the cell.

Front

What is the main difference between passive and active transport?

Back

Active transport uses energy; passive transport does not.

Front

Define Osmosis.

Back

The movement of water across 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.

Front

What is Active Transport?

Back

The movement of molecules across a cell membrane using energy, typically against a concentration gradient.

Front

What does 'Hydrophobic' mean in the context of cell membranes?

Back

Refers to molecules that repel water; the fatty acid tails of the lipid bilayer are hydrophobic.

Front

What is a selectively permeable membrane?

Back

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