Cell Membrane and Transport

Front

What happens to a de-shelled egg in a 15% saltwater solution if it contains 5% dissolved solids?

Back

The egg would shrivel up.

Front

What type of transport allows starch to pass through the membrane using special proteins from high to low concentration?

Back

Facilitated Diffusion

Front

What is the hydrophilic portion of the cell membrane?

Back

A

Front

In what type of solution do cells not change in shape or size?

Back

Isotonic

Front

In the process of making tea, what is the water considered?

Back

Solvent

Front

Define the term 'cell membrane'.

Back

A biological membrane that separates and protects the interior of all cells from the outside environment.

Front

What is osmosis?

Back

The movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is the difference between hypotonic and hypertonic solutions?

Back

Hypotonic solutions have a lower concentration of solutes compared to the cell, causing it to swell; hypertonic solutions have a higher concentration of solutes, causing the cell to shrink.

Front

What is simple diffusion?

Back

The passive movement of molecules from an area of high concentration to an area of low concentration without the need for energy.

Front

What role do transport proteins play in facilitated diffusion?

Back

They help larger or polar molecules cross the cell membrane by providing a pathway.