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What is glucose?

Updated: 4/27/2022
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10y ago

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== Answer 1==

It is a carbohydrate(*)/sugar. It is in both plants as a result of photosynthesis and in the human body as well. Glucose is a sugar found in the bloodstream and is the body's main source of energy. Pure glucose is a solid, and will therefore not evaporate(**). If it is in a solution (glucose dissolved in water for instance), then the water can evaporate, but not the glucose itself. (***)

Glucose a monosaccharide (simple sugar) with formula C6H12O6 or H-(C=O)-(CHOH)5-H, whose five hydroxyl (OH) groups are arranged in a specific way along its six-carbon backbone.

Further related definitions:

Sucrose is an organic compound commonly known as table sugar, sometimes called saccharose. At room temperature it is a white, odorless, crystalline powder. The sucrose molecule is a disaccharide composed of the monosaccharides glucose and fructose, and has a molecular formula C12H22O11.

(*) A carbohydrate is any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose. They contain hydrogen and oxygen in the same ratio as water (2:1) and typically can be broken down to release energy in the animal body.

(**) Some solids can evaporate; the process of a material going directly from the solid phase to the vapor phase (and not going through a liquid phase) is called sublimation. Frozen carbon dioxide (dry ice) undergoes sublimation; under normal temperatures and pressures, it never enters a liquid form.

(***) the author is saying that glucose is not volatile, ie won't boil away or evaporate off like water.

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Surcose which is a micture of (Glucose + fructose) Lactose..................................(Glucose + galactose) Maltose..................................(Glucose + glucose)


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Glucose+glucose=a disaccharide called "maltose" Glucose+lots more glucose=a polysaccharide called "starch"


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