What is cellulose? Detailed answer

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What is cellulose? Detailed answer

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What is cellulose?

The soft part of plants and animals mainly contains cellulose. Cellulose is what gives plants flexibility.

Almost all green plants produce cellulose for their needs. It contains the same elements as sugar, namely carbon, hydrogen and oxygen. These elements are present in air and water. Sugar is formed in the leaves and, dissolving in the juice, spreads throughout the plant. The main part of the sugar goes to promote plant growth and restoration work, the rest of the sugar is converted into cellulose. The plant uses it to create the shell of new cells.

Cellulose is one of those natural products that is almost impossible to obtain artificially. But we use it in different areas. A person receives cellulose from plants even after their death and the complete absence of moisture in them. For example, wild cotton is one of the purest forms of natural cellulose that humans use to make clothing.

Cellulose is part of the plants used by humans as food - lettuce, celery, and bran. The human body is not able to digest cellulose, but it is useful as "roughage" in his diet. In the stomach of some animals, such as sheep, camels, there are bacteria that allow these animals to digest cellulose.

Cellulose is a valuable raw material from which a person receives various products. Composed of 99,8% cellulose, cotton is a wonderful example of what man can produce from cellulose fibre. If cotton is treated with a mixture of nitric and sulfuric acid, we get pyroxylin, which is an explosive.

After various chemical processing of cellulose, other products can be obtained from it. Among them: the basis for photographic film, additives for varnishes, viscose fibers for the production of fabrics, cellophane and other plastic materials. Cellulose is also used in the manufacture of paper.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What kind of memory can metal alloys have?

Some metal alloys, such as nitinol (55% nickel and 45% titanium), have a shape memory effect. It lies in the fact that a deformed product made of such a material, when heated to a certain temperature, returns to its original shape. This is due to the fact that these alloys have a special internal structure called martensite, which has the property of thermoelasticity. In the deformed parts of the structure, internal stresses arise, which tend to return the structure to its original state. Shape memory materials are widely used in manufacturing, for example, for connecting sleeves that shrink at very low temperatures and straighten at room temperature, forming a connection that is much more reliable than welding.

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