Cell Membrane and Cell Transport

Front

What is cell transport?

Back

The movement of materials in and out of the cell.

Front

Which type of transport moves molecules against the concentration gradient?

Back

Active Transport.

Front

What is diffusion?

Back

An example of passive transport where molecules move from high concentration to low concentration.

Front

What part of the phospholipid is hydrophilic?

Back

Phosphate Head.

Front

What is facilitated diffusion?

Back

A type of passive transport that uses proteins to help move molecules across the cell membrane.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the role of the cell membrane?

Back

To protect the cell and regulate what enters and leaves.

Front

What is active transport?

Back

The movement of molecules against their concentration gradient, requiring energy.

Front

What are fatty acid tails?

Back

Hydrophobic (water-repelling) parts of phospholipids that make up the cell membrane.

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.