2025 Leaving Certification Exam Practice – Food, COL, and Scientific Method

Question: 1 / 400

What is the structure of a triglyceride?

Two fatty acids and one glycerol

Three fatty acids and one glycerol

The structure of a triglyceride consists of three fatty acids esterified to one glycerol molecule. This specific configuration is essential for triglycerides, which are the most common type of fat found in living organisms. Each fatty acid forms a bond with the glycerol through a condensation reaction, resulting in the formation of diester linkages. This structure is crucial for the energy storage functions of triglycerides, as they serve as a concentrated source of energy in the body.

The presence of three fatty acids is a key differentiator that characterizes triglycerides, as the arrangement provides the molecule with its hydrophobic properties, allowing it to be stored in adipose tissue and utilized for energy when needed.

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One fatty acid and two glycerols

Two glycerol molecules and one fatty acid

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