Chapter 8: 7P (page 243)
Some bacteria produce thiosugars, which contain a C鈥擲 covalent bond, such as 2-deoxy-2-thio-尾-D-glucose. Draw the structure of this sugar.
Short Answer
The structure of the sugar is:
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Chapter 8: 7P (page 243)
Some bacteria produce thiosugars, which contain a C鈥擲 covalent bond, such as 2-deoxy-2-thio-尾-D-glucose. Draw the structure of this sugar.
The structure of the sugar is:
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Which of the following pairs of sugars are epimers of each other? (a) D-sorbose and D-psicose (b) D-sorbose and D-fructose (c) D-erythrose and D-arabinose.
Bacteria that live in the large intestine metabolize glycocholic acid
using amidases and hydroxylases.
(a) Draw the reaction product.
(b) Compare the solubility of the product and glycocholic acid.
(c) Could the change in the bile acid鈥檚 solubility make it less toxic to bacteria?
Which of the following pairs of sugars are epimers of each other? (a) D-fructose and L-fructose (b) D-arabinose and D-ribose (c) D-ribose and D-ribulose.
The artificial sweetener sucralose is a derivative of sucrose with the formal name 1,6-dichloro-1,6-dideoxy-尾-D-fructofuranosyl-4-chloro-4-deoxy-伪-D-galactopyranoside. Draw its structure.
Nearly all enzymes that require a nicotinamide cofactor use either or (Figure ) but not both. Compare the net charge of each cofactor.
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