Question

select the true statements. fatty acids in a phospholipid are called tails. a phospholipid is made when one glycerol molecule combines with three fatty acids. phospholipids are used to build cell membranes. unlike triglycerides, phospholipids have nitrogen and phosphorus atoms.

Explanation:

1. In phospholipids, the fatty - acid components are indeed called tails due to their long - chain structure.
2. A phospholipid is made when one glycerol molecule combines with two fatty acids and a phosphate - containing group, not three fatty acids (a triglyceride is made from one glycerol and three fatty acids).
3. Phospholipids are a major component of cell membranes, forming a bilayer.
4. Triglycerides consist of glycerol and fatty acids only, while phospholipids contain nitrogen and phosphorus in their phosphate - containing head group.

Answer:

• Fatty acids in a phospholipid are called tails.
• Phospholipids are used to build cell membranes.
• Unlike triglycerides, phospholipids have nitrogen and phosphorus atoms.