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The ester bond in the triacylglycerol can be hydrolyzed in the presence of _____________.

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Solution

The ester bond in the triacylglycerol can be hydrolyzed in the presence of a strong acid or base, or by an enzyme such as lipase.

Here are the steps:

  1. In the presence of a strong acid or base: The acid or base acts as a catalyst to break the ester bond. This process is known as saponification when done with a base. The hydroxyl group from the water molecule attacks the carbonyl carbon of the ester, breaking the ester bond and forming a carboxylic acid and an alcohol.

  2. In the presence of an enzyme such as lipase: Lipase catalyzes the hydrolysis of the ester bond in a biological setting. The enzyme binds to the triacylglycerol and positions it in such a way that a water molecule can attack the ester bond. The result is a free fatty acid and a glycerol molecule.

In both cases, the process is a type of hydrolysis reaction, which is a reaction involving the breaking of a bond in a molecule using water.

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