A condensation reaction between two monosaccharides forms a glycosidic bond
When two sugar units join together, they release a water molecule. This reaction creates a covalent link called a glycosidic bond.
Formula
Monosaccharide–OH + H–Monosaccharide → Monosaccharide–O–Monosaccharide + H₂O
Real World
Brewing beer relies on maltose — two glucose units linked by a glycosidic bond — which yeast enzymes then hydrolyse to release glucose for fermentation, producing the alcohol in brands like Guinness.
Exam Focus
Name the bond correctly as a 'glycosidic bond' — writing 'covalent bond' alone is insufficient for the specific bond mark.
Evaluation Scaffold
A four-step framework for high-quality evaluation. Use this for 'assess', 'evaluate', and 'to what extent' questions.
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