BIOLOGY 1A03 Chapter Notes - Chapter 5: Glycosidic Bond, Lactose Intolerance, Covalent Bond

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Rosa Da Silva

Document Summary

Alpha glucose: oh group is below the plane of axis (carbon 1) Beta glucose: oh group is above the plane of axis. In aqueous solutions, glucose spontaneously forms rings (carbon 1) Alpha glucose (carbon 1) + alpha glucose (carbon 4) produces maltose: forms glycosidic linkages, maltose is the sugar found in beer (barley) Beta galactose (carbon 1) + beta glucose (carbon 4) produces lactose: forms glycosidic linkages, condensation dehydration synthesis. Glucose + fructose produces sucrose: sucrose is a liquid form of sugar. Adults do not produce sufficient amounts of lactase. Lactase is an enzyme which splits lactose into glucose and galactose. Lacks the enzyme that converts galactose to glucose. Impacts organ systems and neurological support, forms cataracts and may cause renal failure. Amylopectin found in plant cells not animal cells. Hydrogen bonds independently are weak but collectively are strong; provides support. Peptidoglycan found in secondary infections: has beta (1,4) glycosidic linkages, bacteria. **which polysaccharide is structurally stable, provide an experiment*