BIO SCI 9A Lecture Notes - Lecture 7: Cholesterol, Lactase, Hereditary Fructose Intolerance
6 Sep 2016
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Glucose not abundant as glucose in foods. Fructose in fruits, honey, and hfcs (high fructose corn syrup) The lines represent some of the bonds and carbons at the corners are not shown. Now the single hydrogens are not shown, but lines still extend upward or downward from the ring to show where they belong. Another way to look at glucose is to notice that its 6 carbon atoms are all connected. Maltose germinating seeds and whenever starch is being digested: glucose + glucose. Sucrose table sugar: glucose + fructose. A glycogen molecule contains hundreds of glucose units in long, highly branched chains. A starch molecule contains hundreds of glucose molecules in either occasionally branched chains (amylopectin) or unbranched chains (amylose. Storage form of carbohydrate for animals and human. Found in the liver and muscles: provide rapid release of energy when needed. Starch: amylose straight chain polymer (20% of the digestible starch, amylopectin highly branched polymer (80% of digestible starch)
