Protein Structure
The primary structure of a protein or polypeptide is the sequence of amino acids joined together by peptide bonds.
This is determined by the sequence of bases in DNA.

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Key terms in this lesson
- peptide bond
- The covalent bond formed between two amino acids by a condensation reaction.
More in Biological Molecules
- Lipids and Health
- Amino-acids
- Thin Layer Chromatography
- Polypeptides
- Hydrolysis of Peptides
- Globular Proteins
- Insulin
- Conjugated Proteins
All 63 lessons in Biological Molecules · All OCR AS-level Biology topics