Cell Membrane and Transport

Front

What is the hydrophilic portion of the cell membrane?

Back

The hydrophilic portion of the cell membrane refers to the polar heads of phospholipids that are attracted to water.

Front

What is the term for a substance that is dissolved in a solution?

Back

Solute

Front

What do you get when you combine a solute and a solvent?

Back

Solution

Front

What macromolecules form channels and pumps in the phospholipid bilayer?

Back

Proteins

Front

What type of transport involves large molecules moving from high to low concentration with the help of special proteins?

Back

Facilitated Diffusion

Front

What is the primary function of the cell membrane?

Back

To regulate what enters and exits the cell, maintaining homeostasis.

Front

What are the two main components of the cell membrane?

Back

Phospholipids and proteins.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between simple diffusion and facilitated diffusion?

Back

Simple diffusion does not require proteins, while facilitated diffusion does.

Front

What role do carbohydrates play in the cell membrane?

Back

Carbohydrates are involved in cell recognition and signaling.