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Sugar is a covalent solid composed of sucrose molecules, C 12 H 22 O 11. When this compound dissolves in water, its molecules become uniformly distributed among the molecules of water:
Sucrose is the most common form of carbohydrate used to transport carbon within a plant. Sucrose is able to be dissolved into water, while maintaining a stable structure. Sucrose can then be exported by plant cells into the phloem , the special vascular tissue designed to transport sugars.
Sucrose (C 12 H 22 O 11) is a disaccharide; hydrolysis, by the enzyme invertase, yields “ invert sugar ” (so called because the hydrolysis results in an inversion of the rotation of plane polarized light), a 50:50 mixture of fructose and glucose, its two constituent monosaccharides.
When sugar dissolves in water, the weak bonds between the individual sucrose molecules are broken, and these C 12 H 22 O 11 molecules are released into solution. It takes energy to break the bonds between the C 12 H 22 O 11 molecules in sucrose.
Show students how the polar areas of a sucrose molecule cause it to dissolve in water. Explain to students that sugar is made of large molecules called sucrose.
Sugar is a covalent solid composed of sucrose molecules, \(\ce{C12H22O11}\). When this compound dissolves in water, its molecules become uniformly distributed among the molecules of water: \[\ce{C12H22O11 (s) C12H22O11 (aq) } \label{Eq1}\]
Sucrose is made from glucose and fructose units. The glucose and fructose units are joined by an acetal oxygen bridge in the alpha orientation. The structure is easy to recognize because it contains the six member ring of glucose and the five member ring of fructose.
Sugar is a covalent solid composed of sucrose molecules, C12H22O11 C 12 H 22 O 11. When this compound dissolves in water, its molecules become uniformly distributed among the molecules of water: C12H22O11(s) → C12H22O11(aq) C 12 H 22 O 11 (s) → C 12 H 22 O 11 (a q)
Sucrose is the most common type of carbohydrate used for the carriage of carbon in a plant. Sucrose can be dissolved in water, thus retaining a stable structure. Sucrose will then be transported into the phloem by plant cells, the special vascular tissue intended for sugar transport.
Take a sip, though, and you’ll taste it. That’s because the sugar molecules have split up and spread throughout the glass. In this example, sugar is a solute. That’s what chemists call a substance that dissolves into another. The water is a solvent—the liquid that breaks down a solute.