What Is the Composition of Sucrose

question 40

Multiple Choice

What is the composition of sucrose?

• A)Two glucose units with a a-1,4'-glycoside bond
• B)One glucose and one fructose unit with a a-glycosidic bond to the 2' carbon of a fructofuranose ring
• C)One galactose and one glucose unit with a b-1,4'-glycoside bond
• D)Repeating unit of glucose units joined in a b-1,4'-glycosidic linkage

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Definitions:

Pith Rays

Tissue in plants that extends radially across the stem or trunk, involved in the storage and transport of nutrients horizontally within the structure.

Heartwood

The dense, inner part of a tree trunk, yielding the hardest wood.

Sapwood

The younger, softer, outermost layers of wood between the heartwood and the bark, functioning in the transport of water and nutrients.

Softwood

Wood from gymnosperm trees, typically less dense than hardwood, used in construction, paper manufacturing, and furniture.