Carbohydrates are made up of Monosaccharides.
1. Most carbohydrates are polymers
2. All carbohydrates contain the elements C,H and O
3. Monomers made from monosaccharides. e.g. glucose, fructose and galactose.
Monosaccharides join together to form Disaccharides and Polysaccharides
1. Jointed together by condensation reactions
2. During condensation reaction – molecule of water is released and a glycosidic bond forms between the two monosaccharides
3. A disaccharide is formed when two monosaccharides join together
Disaccharides and Polysaccharides are broken down during digestion
· Usually present food that we eat, need to be able to break them down. Enzymes released in intestal epithelium that hydrolyse (break down) disaccharides and polysaccharides.
· Maltose hydrolysed by maltase makes glucose and glucose
· Sucrose hydrolysed by sucrase makes glucose and fructose
· Lactose hydrolysed…