Cell Transport Part 1

Front

Passive transport moves particles (solute) from areas of _______ concentration to areas of ________ concentration.

Back

HIGH to LOW concentration.

Front

Identify structure Y in a plant cell and describe its main function.

Back

Structure Y is the cell membrane, which regulates what enters and leaves the cell.

Front

What is the cell membrane also called and why?

Back

The cell membrane is also called a 'lipid bilayer' because it has two layers of phospholipids.

Front

How do small molecules like O2 and CO2 move directly between the phospholipids?

Back

They move through simple diffusion.

Front

Which type of membrane transport requires energy?

Back

Active transport requires energy.

Front

Define passive transport.

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically from an area of higher concentration to an area of lower concentration.

Front

What is active transport?

Back

Active transport is the movement of substances across a cell membrane using energy, usually against their concentration gradient.

Front

What role do phospholipids play in the cell membrane?

Back

Phospholipids form the basic structure of the cell membrane, creating a barrier that separates the inside of the cell from the outside.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules 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 wall in plant cells?

Back

The cell wall provides structural support and protection to the plant cell.