Cell Membrane and Passive Transport (Class)

Front

What are the two types of passive transport?

Back

Osmosis and diffusion.

Front

In which direction do molecules diffuse in passive transport?

Back

From left to right.

Front

What is the hydrophilic portion of the cell membrane?

Back

The hydrophilic portion is the part that interacts with water, typically the heads of phospholipids.

Front

What are the two parts of a phospholipid?

Back

Hydrophilic Head and Hydrophobic Tail.

Front

What does a selectively permeable membrane do?

Back

It allows some things to enter and leave cells while keeping other things out.

Front

Define osmosis.

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

Define diffusion.

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is the role of the cell membrane?

Back

The cell membrane protects the cell and regulates what enters and exits.

Front

What is meant by 'hydrophobic'?

Back

Hydrophobic refers to substances that do not interact well with water.

Front

What is meant by 'hydrophilic'?

Back

Hydrophilic refers to substances that interact well with water.