1. Answer;
-Two fatty acids
Explanation;
-Phospholipids have a hydrophilic head and a hydrophobic tail.
-The hydrophilic head includes a glycerol molecule attached to a single phosphate group, which is then attached to another small molecule. The phosphate group and its attachments are either polar or charged. Water molecules are polar and therefore are attracted to these charged regions of the phospholipid head.
-The hydrophobic tails are two fatty acids attached to the glycerol molecule of the head. Water molecules are not attracted to the tails because C-H bonds are relatively nonpolar and therefore do not result in charged regions in the tails.
2. Answer;
-negative charge to interact with water
-place to attach another small charged molecule
Explanation;
-Phospholipids vary in the small molecules attached to the phosphate group.
-Because the phosphate group and its attachments are either charged or polar, the phospholipid head is hydrophilic, which means it has an affinity for water.A phospholipid also has two "tails" made up of two fatty acid molecules, which consist of a carboxyl group with a long hydrocarbon chain attached.