Each fat molecule is formed from:

Options

A. one glycerol molecule and one fatty acid molecule
B. one glycerol molecule and three fatty acid molecules
C. three glycerol molecules and one fatty acid molecule
D. three glycerol molecules and three fatty acid molecules

Explanation

To answer the question "Each fat molecule is formed from:", we need to break down the components that make up a fat molecule.

### Step-by-Step Solution:

1. **Understanding the Components**:
- A fat molecule is primarily composed of two types of molecules: glycerol and fatty acids.

2. **Identifying Glycerol**:
- Glycerol is a three-carbon alcohol. It serves as the backbone of the fat molecule.

3. **Identifying Fatty Acids**:
- Fatty acids are long hydrocarbon chains that end with a carboxylic acid group (–COOH).

4. **Combining Glycerol and Fatty Acids**:
- Each fat molecule (specifically triglycerides) is formed by combining one glycerol molecule with three fatty acid molecules.

5. **Formation of Triglycerides**:
- When one glycerol molecule binds with three fatty acids, it results in the formation of a triglyceride. During this process, three molecules of water are released (a condensation reaction).

6. **Final Composition**:
- Therefore, each fat molecule is formed from 1 glycerol molecule and 3 fatty acid molecules.

### Final Answer:
Each fat molecule is formed from 1 glycerol molecule and 3 fatty acid molecules.

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