Question

Hydrophobic end of phospholipid has

• A. affinity for water
• B. non affinity for water
• C. affinity for metabolites
• D. non affinity for metabolites

Answer 1

The correct option is B non affinity for water

The phospholipids are amphiphilic molecules. The hydrophilic end usually contains a negatively charged phosphate group, and the hydrophobic end usually consists of two "tails" that are long fatty acid residues.

Hydrophobic molecules tend to be non-polar. They interact with other non-polar molecules but generally do not interact with polar molecules like water. Hence, hydrophobic end of phospholipid has non affinity for water.

When placed in water, hydrophobic molecules tend to form a cluster and the hydrophilic regions of the phospholipids tend to form hydrogen bonds with water and other polar molecules present on the exterior and interior surface.