Cell Membrane Structure & Passive transport

Front

What is the concentration gradient?

Back

The difference in concentration of molecules across a space.

Front

What is the function of the transport and channel proteins of the cell membrane?

Back

Allows large molecules to pass through the cell membrane.

Front

Which of the following describes the cell membrane?

Back

Controls what enters and exits the cell.

Front

Which part of the phospholipid is the hydrophilic portion (likes water)?

Back

Glycerol.

Front

Which of the following describes the parts of the cell membrane?

Back

Phospholipid bilayer, transport proteins, carbohydrates, and cholesterol.

Front

What is passive transport?

Back

The movement of molecules across the cell membrane without the use of energy.

Front

What are the types of passive transport?

Back

Diffusion, facilitated diffusion, and osmosis.

Front

What is diffusion?

Back

The process by which molecules move from an area of high concentration to an area of low concentration.

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a membrane via specific transmembrane integral proteins.

Front

What is osmosis?

Back

The diffusion of water molecules through a selectively permeable membrane.