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Carbohydrate

Carbohydrate
The sugar which forms major component of nucleic acids is

ribose
mannose
galactose
maltose

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Carbohydrate
The ultimate source of energy that sustains living systems is

glucose
carbon dioxide
sunlight
oxygen

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Carbohydrate
Boat and chair conformations are found

in pyranose sugars
in any sugar without axial -OH groups
in any sugar without equatorial -OH groups
only in D-glucopyranose

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Carbohydrate
Which of the following would be considered a part of metabolism?

The capture of light energy for use in making glucose
Biosynthetic pathways that build DNA
All of the above
Catabolic pathways that break down complex carbohydrates

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Carbohydrate
The hormones, glucagon and epinephrine, stimulate glycogen breakdown to G-6-P

using ATP as the phosphoryl donor
directly, by binding to glycogen phosphorylase
indirectly, by first stimulating adenylate cyclase to make cAMP
only in the liver

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Carbohydrate
In lysozyme catalysis, which of the following does not contribute?

Formation of a covalent intermediate at Asp52
The abnormally high pKa of Glu35
Formation of a covalent intermediate at Ser195
The strained conformation of the D sugar

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