Monday, March 15, 2010
Carbon is basic of life.
Carbon is a sixt element in periodic table with atomic weight 12.01. Carbon plays important role in almost every biological process required to make our lives possible. Carbon is nonmetal element usually black but it can be clear and colorless.All forms of carbon are solid in room temperature. Carbon plays very important role in organic chemistry. Carbon makes four covalent bonds in his compounds and create carbon chains of varios lenghts and configurations. Carbon is an important part of natural polymers. Polymer (macromolecule) is a large molecule compoused of repeating structural units typicaly connected by covalent chemical bonds. Natural polymers occure in plants and animals and are very essential for life. For example,proteins constitute much of animal body , nucleic acids control heredity of molecular level and cellulose provides food ,clothing and shelter. Examples of natural polymers:starch,cellulose,protein,silk,wool,rubber. Cellulose is in plants. Starch is in potatoes,corn,rice and grains. Starch and cellulose are made from sugar (glucose)and they act differently. Starch dissolve in water but cellulose not. From starch we make food and from cellulose we build things and make clothing. Protein is a polymer we are made from.
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