Cell Membrane

Front

What is the function of the plasma membrane?

Back

To regulate what enters and leaves the cell.

Front

Do all cells have a cell membrane?

Back

Yes, all cells have a cell membrane.

Front

What does 'bilayer' mean in the context of the cell membrane?

Back

It means two layers.

Front

Which type of transport requires an input of energy?

Back

Active Transport.

Front

What happens to an animal cell placed in a hypertonic (salty) solution?

Back

It shrinks (gets smaller).

Front

What are the main components of the cell membrane?

Back

Phospholipids, proteins, cholesterol, and carbohydrates.

Front

What is the role of cholesterol in the cell membrane?

Back

To maintain fluidity and stability of the membrane.

Front

What is passive transport?

Back

Movement of substances across the cell membrane without the use of energy.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the difference between a hypertonic and hypotonic solution?

Back

Hypertonic solutions have a higher concentration of solutes than the cell, while hypotonic solutions have a lower concentration.