What characteristic of phospholipids allows them to be such an ...

[jman1234]

What characteristic of phospholipids allows them to be such
  an important part of the cell membrane?

Question 2

After chyme leaves the stomach and enters the duodenum, the duodenum is protected from the acidic chyme because
 
 A. bicarbonate secreted by the pancreas neutralizes the chyme.
  B. bile secreted by the gallbladder neutralizes the chyme.
  C. enzymes secreted in the duodenum degrade the acid.
  D. None of the above because the chyme is not terribly acidic when it leaves the stomach

[Sarahjh]

Answer to Question 1

Phospholipids are amphipathic, which means that they
contain a hydrophilic and a hydrophobic region within each
molecule. This allows them to interact with water or with
lipids, which makes them perfect for cell membranes.

Answer to Question 2

A

[jman1234]

Excellent

[atrochim]

Gracias!