Cell membrane and Diffusion

Front

What is the term for the tail of the phospholipid that means 'water fearing'?

Back

Hydrophobic

Front

How does a cell maintain homeostasis?

Back

By regulating what enters and leaves the cell.

Front

What is passive transport?

Back

The movement of particles across the membrane from an area of high concentration to an area of low concentration.

Front

What is another term for equilibrium?

Back

Homeostasis.

Front

Which part of a phospholipid is hydrophilic?

Back

The phosphate 'head'.

Front

What is the function of the cell membrane?

Back

To act as a protective barrier and regulate the movement of substances in and out of the cell.

Front

Define diffusion.

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What does selectively permeable mean?

Back

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

Front

What is the role of cholesterol in the cell membrane?

Back

To provide stability and fluidity to the membrane.