Which of the following element is present in all proteins?
Correct answer: D. b and c
- A. S
- B. C
- C. N
- D. b and c
Explanation
carbon, and nitrogen are all essential elements found in all proteins., nitrogen is crucial for peptide bond formation and hydrogen bonding within protein structures. Together, these elements play vital roles in the structure, function, and stability of proteins.
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About Macromolecules
Proteins are classified by shape, composition and structure, from primary amino acid sequence to secondary, tertiary and quaternary organisation, and their biological roles are linked to this structure. Enzymes are examined as protein biocatalysts, including active sites, substrate specificity, activation energy, cofactors and factors affecting activity.
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