Match List I with List II and select the correct answer using the code given below the Lists : List I (Molecule) A. Proteins B. Carbohydrates C. Nucleic adds D. Lipids List II (Product of digestion) 1. Nitrogenous bases and pentose sugars 2. Fatty acids and glycerol 3. Monosaccharides 4. Amino acids Code: A B C D

The digestion of biomolecules involves breaking down complex polymers into their constituent monomers for absorption. Proteins are polymers of amino acids; during digestion, enzymes like pepsin and trypsin hydrolyze peptide bonds to release free amino acids [1]. Carbohydrates, including complex starches, are broken down by amylases and brush border enzymes into simple sugars or monosaccharides like glucose [1]. Nucleic acids (DNA and RNA) are processed by pancreatic nucleases into nucleotides, which are further degraded by nucleosidases into nitrogenous bases and pentose sugars. Lipids, primarily triglycerides, are emulsified by bile and then acted upon by lipases to produce fatty acids and glycerol [1]. Matching these pairs (A-4, B-3, C-1, D-2) leads to the correct sequence 4 3 1 2.

Sources

1. [1] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > Activity 5.3 > p. 86