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You need to know the structure of the three main monosaccharides: glucose, fructose, and galactose. Learn to draw these in preparation of your exams. More importantly, you also need to know the isomers of glucose, alpha and beta glucose (note that the groups on the right are reversed).
The beta (β) Fructose molecule - rotatable in 3 dimensions. Fructose (fruit sugar) is a monosaccharide - formula C 6 H 12 O 6. It shares the same empirical formula with other 6-carbon (hexose) sugars such as glucose and galactose.
19 Σεπ 2024 · A monosaccharide is a simple sugar e.g. glucose (C 6H12O6) or fructose. A disaccharide is made when two monosaccharides join together, e.g. maltose is formed from two glucose molecules. A large polysaccharide is formed when lots of monosaccharides join together.
31 Μαΐ 2022 · A molecule of glucose and a molecule of fructose are formed when one molecule of sucrose is hydrolysed; the addition of water to the glycosidic bond breaks it. Common disaccharides. Monosaccharides can join together via condensation reactions to form disaccharides.
Questions and model answers on 2.2 Carbohydrates & Lipids for the CIE A Level Biology syllabus, written by the Biology experts at Save My Exams.
By chemically joining a glucose molecule with a fructose molecule, a double sugar called sucrose is produced. This type of bond between monosaccharide units is called a glycosidic linkage. Use the paper models supplied in this lab to complete the following questions. • Cut out models of one glucose and one fructose molecule.
Triglycerides, phospholipids and proteins are important biological molecules. Triglycerides are found in a variety of foods, such as milk, and are an important part of a human diet. They are digested and absorbed in the small intestine. Bile salts present in the small intestine speed up the digestion of triglycerides.
