Phospholipid is

Options

A. one fatty acid and three glycerol
B. phosphoric acid, two fatty acids and one glycerol
C. phosphoric acid, three fatty acids and one glycerol
D. phosphoric acid, one fatty acid and three glycerol

Answer

### Step-by-Step Solution:

1. **Understanding Phospholipids**:
- Phospholipids are essential components of cell membranes. They consist of a glycerol backbone, two fatty acid chains, and a phosphate group.

2. **Identifying Components**:
- A phospholipid is made up of:
- **1 Glycerol Molecule**: This serves as the backbone.
- **2 Fatty Acid Chains**: These are attached to the glycerol and are hydrophobic (water-repelling).
- **1 Phosphate Group**: This is attached to the glycerol and is hydrophilic (water-attracting).

3. **Analyzing the Options**:
- The options provided are:
1. 1 fatty acid and 3 glycerol
2. 2 fatty acids and 1 glycerol, phosphoric acid
3. 3 fatty acids and 1 glycerol, phosphoric acid
4. 1 fatty acid and 3 glycerol
- We need to identify which option correctly describes the structure of a phospholipid.

4. **Evaluating Each Option**:
- **Option 1**: 1 fatty acid and 3 glycerol - Incorrect (Phospholipids have 2 fatty acids and 1 glycerol).
- **Option 2**: 2 fatty acids and 1 glycerol - Correct (This matches the structure of a phospholipid).
- **Option 3**: 3 fatty acids and 1 glycerol - Incorrect (Phospholipids have only 2 fatty acids).
- **Option 4**: 1 fatty acid and 3 glycerol - Incorrect (Again, phospholipids have 2 fatty acids).

5. **Conclusion**:
- The correct answer is **Option 2: 2 fatty acids and 1 glycerol, phosphoric acid**.