The Plasma Membrane

Front

What is the primary component of the cell membrane?

Back

Phospholipids are the primary component of the cell membrane.

Front

What process moves molecules from low concentration to high concentration?

Back

Active transport moves molecules from low concentration to high concentration.

Front

How many layers does the lipid bilayer have?

Back

The lipid bilayer has 2 layers.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is the term for the diffusion of water across a membrane?

Back

The diffusion of water across a membrane is called osmosis.

Front

What are membrane-spanning proteins?

Back

Membrane-spanning proteins are proteins that extend across the cell membrane and help transport substances.

Front

What role do carbohydrates play in the cell membrane?

Back

Carbohydrates are involved in cell recognition and signaling.

Front

What is the function of the plasma membrane?

Back

The plasma membrane controls what enters and exits the cell, maintaining homeostasis.

Front

What is selective permeability?

Back

Selective permeability is the property of the plasma membrane that allows certain substances to pass while blocking others.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across the membrane via specific proteins.