Cell membrane and Diffusion

Front

Hydrophilic means...

Back

water-loving

Front

Where is there a low concentration of dye?

Back

at the bottom of cup

Front

What word describes the tail of the phospholipid and means 'water fearing'?

Back

Hydrophobic

Front

The function of the plasma membrane is....

Back

to regulate what enters and leaves the cell.

Front

Identify the part of the membrane identified as A.

Back

phospholipid

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (water-loving) head and two hydrophobic (water-fearing) tails.

Front

What is diffusion?

Back

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

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What does selectively permeable mean?

Back

Selectively permeable means that a membrane allows certain substances to pass through while blocking others.

Front

What role do proteins play in the cell membrane?

Back

Proteins in the cell membrane help transport substances, act as receptors, and provide structural support.