Why Is Sugar an Organic Molecule

To answer the question of why is sugar an organic molecule, you need to understand how it is produced. Sugar is produced through the photosynthesis of several sugar plants: sugar cane and beets, as well as sugar maple, date palm, pineapple, and many other plants. Pay attention to the physicochemical properties of sucrose.

Why is sugar an organic molecule

Physicists will tell you that sugar or sucrose is an organic molecule composed of carbon (C), hydrogen (H), and oxygen (O). Its general chemical formula is C 12 H 22 O 11 with a molar mass of 342.30 g/mol.

Specifically, sucrose is made up of two molecules, one of fructose and one of glucose. Therefore, scientists gave it the official (and international) name D-glucopyranosyl-D-fructofuranose.

Chemical properties of carbohydrate monomers

Consider using the example of glucose sugar, which is of the greatest importance in the metabolism of humans, animals, and plants. In addition, this compound is widely used in medicine and industry.

Alcoholic fermentation is a reaction that, perhaps, has acquired the greatest practical significance. It lies in the fact that the glucose molecule is converted under the action of yeast microorganisms into ethyl alcohol. In addition, if lactic or butyric acid bacteria act on glucose, lactic or butyric acid will be formed, respectively.

A qualitative reaction is a silver mirror. Taking into account the fact that an aldehyde group is present in glucose when interacting with an ammonia solution of silver oxide, a silvery precipitate will form (this will be pure silver).

The reaction of glucose with copper hydroxide will be characteristic - the blue color of the solution will change to red (the reason is the formation of monovalent copper oxide). It is important to note that this course of the reaction is possible only when heated - alcohol groups will work at room temperature and the color of the solution will become dark blue (similar to a qualitative reaction with glycerol, polyhydric alcohol).

Another reaction of practical importance is the reduction of glucose under the action of hydrogen to sorbitol, and hexatomic alcohol (again, this is possible due to the presence of an aldehyde group in the glucose molecule).

And of course, we must not forget about the polymerization reaction, as a result of which, by combining a vast number of molecules, a huge number of glucose molecules (or another monomer carbohydrate) are connected and starch (or cellulose) is formed. The optical isomer is the same what is important is which functional group is involved in the formation of the chain. Proceeding from this, it becomes obvious why it is easy for scientists to answer the question of why is sugar an organic molecule.

Chemical properties of sugar

To better understand why sugar is an organic molecule, it is necessary, among other things, to dig deeper into its chemical properties. So the disaccharide dissolves quickly in ethanol and less in methanol and also does not dissolve at all in diethyl ether. The density of sucrose at 15 degrees Celsius is 1.5279 g/cm3.

Sugar is another substance that contains oxygen and hydrogen atoms. But, in addition to them, sugar molecules also contain carbon atoms. By its properties, sugar is not like water, oxygen, or hydrogen. The presence in the molecule of various types of atoms and their arrangement determine the properties that are characteristic only of sugar. The properties of any substance are determined by its constituent atoms, their number, and arrangement.

These two compounds, chlorophyll, and heme play a critical role in the complex mechanism of absorbing solar energy and converting it for use by living organisms. We already know that a characteristic property of transition metal complexes is the presence of several closely spaced - levels, which allows them to absorb light in the visible region of the spectrum and impart color. The porphyrin cycle around the Mg ion in the chlorophyll molecule plays the same role. Chlorophyll in plants absorbs photons of visible light and goes into an excited electronic state. This excitatory energy can initiate a chain of chemical reactions leading eventually to the formation of sugars from carbon dioxide and water.

Emil Fischer, who had previously established the detailed structure of sugar molecules, drew attention to the protein molecule at the beginning of our century. He showed that the amino group of one amino acid is connected to the rest of the molecule of another acid by a peptide bond. In 1907, Fisher obtained a compound that combines eighteen amino acids and showed that it has some properties characteristic of proteins.