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21 Carboxylic Acid Derivatives -- Part 8
The point of attachment of the bond to mannose is shown in the procedure.
All of the hydroxy groups are methylated except C1 and C5.
The hemiacetal of the pyranose ring is formed by acetylgalactosamine and Type B and C5 oxygen.
All cells have an antigenic galactose.
The structure is called the universal and systematic name.
There is no reaction when trehalose is treated with a b@glucosidase.
Provide a complete structure and systematic name for trehalose.
Tollens reagent is not reduced by Raffinose.
d-glucose, d-fructose, and d-galactose are produced by complete hydrolysis of raffinose.
An a@galactosidase hydrolyzes it to d-galactose and sucrose, which is unaffected by treatment with a b@galactosidase.
Give a systematic name for melibiose and determine the complete structures of raffinose.
There are hundreds or thousands of sugar units linked together.
All the anomeric carbon atoms of the polysaccharides are involved in the acetal glycosidic links.
Polysaccharides give no reaction with Tollens reagent.
Plants usecellulose as a structural material to support their weight.
Roughly 50% of dry wood and 80% of cotton fiber is made from wood.
d-glucose units are linked by b@1,4' glycosidic bonds.
This bonding arrangement is very stable and rigid, making it a good structural material.
Humans and other mammals don't have the b@glucosidase needed to hydrolyze cellulose, so they can't use it for food.
Several groups ofbacteria and protozoa can hydrolyze.
Colonies of thesebacteria are found in the gut of ruminants.
When a cow eats hay, the bacteria convert some of it to food.
A fiber of insoluble cellulose is regenerated when a solution of an aqueous sodium bisulfate is held.
The thickness of cotton is the same as that of rayon, but the graduated nature of the thread makes it much stronger.
Plants use a substance to store energy.
When treated with acid, it is pro tose, sucrose, and other sugars.
The stereochemistry of the linkage is different.
Amylose around teeth and protectsbacteria has a@1,4' links.
There are some striking physical and chemical differences between the two.
hydrogen bonding is increased with a@1,3' linkages.
Candy makers use water.
Amylose is in water, but sorbitol and mannitol lulose are not.
Amylose is not stiff and sturdy ascellulose is.
Amylose is an excellent food source.
The a@1,4' glucosidic linkage is easily hydrolyzed by gum becausebacteria cannot easily a@glucosidase, found in all animals.
The basis of dextran can be found in the structure of amylose.
The inside of the helix is the right size to accept an I2 molecule.
A dark blue charge-transfer complex is formed by the amylose helix.
The material to be tested is added to a solution.
The blue complex with amylose can be formed if the oxidizer oxidizes some of the iodide.
There is a difference between amylose and amylopectin because of the branched nature of amylopectin.
The main chain is connected by another chain at each branch point.
A partial structure of amylopectin leads to rapid weight loss.
The muscles have a large amount of glycogen in them.
Amylopectin is a branched a-1,4' polymer.
The attachment point for another chain is provided by a single a-1,6' linkage at the branch points.
The structure of Glycogen is similar, but it has more branching.
The structure of glycogen is similar to that of amylopectin.
There are many end groups that can be used for quick hydrolysis to provide glucose needed for metabolism.
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