The covalent amide link between the carboxyl group of one amino acid and the amino group of the next.
The carboxyl of one amino acid condenses with the amino group of the next, releasing water. The bond has partial double-bond character, so it is planar and rigid, restricting folding to rotation around the neighbouring bonds.
Chains have an N-terminus and a C-terminus, and are written from N to C.
The covalent amide link between the carboxyl group of one amino acid and the amino group of the next.
Peptide Bond is one of the 51 topics in Biomolecules & Biochemistry. It is rated Intermediate, so it suits learners who already know the core vocabulary. Related topics in this area include Carbon Chemistry, Condensation and Hydrolysis, Amino Acids.
Aspartame is a dipeptide of aspartic acid and phenylalanine methyl ester.
Work through the Beginner topics in Biomolecules & Biochemistry first, such as Water Properties, Carbon Chemistry, Carbohydrates, then return to Peptide Bond. Intermediate topics assume the Beginner vocabulary.
The closest topics to Peptide Bond are Carbon Chemistry, Condensation and Hydrolysis, Amino Acids, Triglycerides. Comparing them side by side is a good way to see how the ideas connect.
Read the summary and the in-depth section, then use the quick check on the interactive lesson for Peptide Bond. To practise the whole of Biomolecules & Biochemistry, use the Biomolecules & Biochemistry quiz.
Peptide Bond: The covalent amide link between the carboxyl group of one amino acid and the amino group of the next. Carbon Chemistry: Carbon forms four covalent bonds, allowing chains, rings and the huge variety of organic molecules in living things. Read both side by side and note what each one explains.
First, read the summary and write the definition in your own words. Second, read the in-depth section and note any example. Third, compare it with Carbon Chemistry and explain the difference aloud. Finally, take the Biomolecules & Biochemistry quiz and come back to this page for any question you miss.
Carbon forms four covalent bonds, allowing chains, rings and the huge variety of organic molecules in living things.
⚗️ Biomolecules & BiochemistryDehydration synthesis joins monomers by removing water, while hydrolysis splits polymers by adding water.
⚗️ Biomolecules & BiochemistryTwenty building blocks, each with an amino group, a carboxyl group and a variable side chain.
⚗️ Biomolecules & BiochemistryFats formed from glycerol joined to three fatty acids, the main long-term energy store in animals.
⚗️ Biomolecules & Biochemistry