Cell Membrane & Transport

Front

What is the fluid mosaic model?

Back

A model that refers to the structure of the cell membrane and its four main parts.

Front

What is osmosis?

Back

The movement of water molecules in and out of the cell.

Front

Does passive transport use energy?

Back

No, passive transport does not require energy.

Front

What is endocytosis?

Back

The process when the cell membrane engulfs large molecules and brings them into the cell.

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is active transport?

Back

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

Front

What are the main components of the cell membrane?

Back

Phospholipids, proteins, cholesterol, and carbohydrates.

Front

What is the role of proteins in the cell membrane?

Back

Proteins assist in transport, act as receptors, and provide structural support.

Front

What is a selectively permeable membrane?

Back

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

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport does.