During peptide bond formation between two alanine molecules, the hydroxyl ($$-\text{OH}$$) group from the carboxylic acid of one alanine and the hydrogen ($$-\text{H}$$) from the amino ($$-\text{NH}_2$$) group of the other alanine react to release a water molecule. This dehydration synthesis process links the two alanine molecules via a peptide bond.

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A peptide bond is a covalent chemical bond formed when the carboxylic acid group of one amino acid reacts with the amine group of another, releasing a water molecule in a dehydration synthesis process.

Peptide bonds

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Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

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Peptides are molecules formed by chemically linking relatively small numbers of amino acids, approximately 50 or fewer, via peptide bonds. They are often designated with prefixes based on their size, such as dipeptides (two amino acids) and tripeptides (three amino acids).

Peptides

Oligopeptides are peptide chains formed by linking up to approximately 20 amino acids.

Oligopeptides

Polypeptides are peptide chains synthesized from up to approximately 50 amino acids.

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