Cell Membrane & Transport

Front

What does 'bilayer' mean?

Back

Two layers.

Front

What is the term for maintaining a constant internal state in a changing environment?

Back

Homeostasis.

Front

What occurs when molecules move from high to low concentration?

Back

Diffusion.

Front

What type of transport uses no energy?

Back

Passive Transport.

Front

What is the process called when a cell takes in materials by engulfing them?

Back

Endocytosis.

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is active transport?

Back

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

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of solutes, while osmosis is the movement of water.

Front

What does 'selectively permeable' mean?

Back

A property of cell membranes that allows some substances to pass while blocking others.