Which of the following is incorrectly represented?

Options

A. Proteins `underset("Carboxypeptidase")overset("Trypsin//Chymotrypsin")rarr` dipeptides
B. Nucleic acids `overset("Nucleotidases")rarr` nucleotides
C. Fats `overset("Lipases")rarr` di/monoglycerides
D. Starch `overset("Salivary amylase")rarr` maltose

Explanation

To determine which of the following is incorrectly represented, we need to analyze each statement regarding the digestion of macromolecules:

1. **Proteins**: Proteins are digested by enzymes such as trypsin, chymotrypsin, and carboxypeptidase, which break them down into smaller peptides and ultimately into dipeptides. This representation is correct.

2. **Nucleic Acids**: Nucleic acids are mentioned to be converted into nucleotides by nucleotidases. However, this statement is incorrect. Nucleotides are actually broken down into nucleosides and phosphate groups by nucleotidases. Therefore, this representation is incorrect.

3. **Fats**: Fats are digested into di- and monoglycerides by lipases. This representation is correct.

4. **Starch**: Starch is digested by salivary amylase into maltose. This representation is also correct.

Based on the analysis, the incorrect representation is related to the conversion of nucleic acids into nucleotides.

**Final Answer**: The incorrectly represented statement is about nucleic acids being converted into nucleotides; they are actually converted into nucleosides and phosphate groups.

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