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1:01Carbohydrates are abbreviated using a three-letter abbreviation followed by their glycosidic bond type. For example, maltose and sucrose can be written respectively as
Provide the structure for the O-type blood carbohydrate set given the following abbreviation:
L-Fucα (1→2) Galß(1→4)GlcNAc
D-Fructose can also form a six-membered ring. Draw the β anomer of D-fructose in the six-membered ring form.
The structure of sucralose, found in the artificial sweetener Splenda, is shown in the figure. It consists of a chlorinated disaccharide made up of galactose and fructose. In its structure shown,
(a) identify the galactose unit and the fructose unit.
How much energy is produced if a person eats 50 g of digestible carbohydrate (not fiber) in a day? In this case, what percent of a 2200 Calorie diet would be digestible carbohydrate? Recall that carbohydrates provide four Calories of energy per gram consumed.
Which of the components in starch is more likely to be broken down more quickly in plants, amylose or amylopectin? Why?
On an exam, a student was asked to draw the Fischer projection of L-glucose, but he had only memorized the structure of D-glucose. He wrote the structure of D-glucose and switched the hydroxyl group on C5 from the right to the left. Was his answer correct? If not, what is the name of the aldose that he drew?
