BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Primary structure of protein refers to the linear chain of amino acids produced by linking together of amino acids through peptide bonds. The sequence of amino acids in the primary structure is determined by the sequence of nucleotides in nucleic acid acting as genetic material.

Detailed explanation-2: -To reiterate, the primary structure of a protein is defined as the sequence of amino acids linked together to form a polypeptide chain. Each amino acid is linked to the next amino acid through peptide bonds created during the protein biosynthesis process.

Detailed explanation-3: -When connected together by a series of peptide bonds, amino acids form a polypeptide, another word for protein.

Detailed explanation-4: -The primary structure of a protein involves the amino acid sequence in the polypeptide chain. The amino acids in this chain are held together by peptide bonds. The secondary structure of a protein involves the pattern of hydrogen bonds along the its peptide bond backbone, such as alpha helices and beta pleated sheets.

Detailed explanation-5: -The answer is c. it is usually branched. Statement C in the given choices is not a description of the primary structure of a protein. The primary structure of a protein is the amino acid sequence which is unique for each protein.