Cell Membrane and Transport

Front

In a lipid bilayer, ___________ fatty acid tails face each other within the bilayer and form a region that excludes water.

Back

Hydrophobic

Front

What does 'Water Loving' mean?

Back

Hydrophilic

Front

A phospholipid has 2 parts. What are they called?

Back

Hydrophilic Head, Hydrophobic Tail

Front

Which gases move into and out of the blood at the lungs by diffusion?

Back

Oxygen and Carbon Dioxide

Front

Identify the part of the membrane identified as A.

Back

Phospholipid

Front

What is the primary function of the cell membrane?

Back

To protect the cell and regulate what enters and leaves.

Front

What is the structure of a phospholipid?

Back

A hydrophilic head and two hydrophobic tails.

Front

Define diffusion in the context of cell transport.

Back

The movement of molecules from an area of higher concentration to an area of lower 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.