Read the following statements carefully: (I) Lipases hydrolyse ester bonds in triglycerides. (II) Nucleases break peptide bonds in nucleic acids. (III) Amylases cleave glycosidic bonds in polysaccharides. (IV) Proteases hydrolyse phosphodiester bonds in proteins. How many of the above statements are correct?

Step-by-step solution

Statement (I) is correct as lipases act on lipids (such as triglycerides) to hydrolyse ester bonds. Statement (II) is incorrect because nucleases hydrolyse phosphodiester bonds in nucleic acids, not peptide bonds. Statement (III) is correct as amylases act on carbohydrates (polysaccharides) to cleave glycosidic bonds. Statement (IV) is incorrect because proteases hydrolyse peptide bonds in proteins, not phosphodiester bonds. Therefore, exactly two statements (I and III) are correct. Answer: Two