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Proteins are
EXPLANATION
Protein & Amino Acid Nutrition
- Chemical Nature of Proteins:
- Proteins: Biological macromolecules composed of linear polymers or chains of amino acids linked together by covalent peptide bonds ($-CO-NH-$).
- They are macronutrients essential for somatic tissue synthesis, enzymatic catalysis, and hormonal regulation.
- Correct Option: Option 2 (Bundles of amino acids).
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