The chemical composition of living organisms is relatively stable. In the largest number of them ar

What studies biochemistry? The science polyethylene glycol that studies the chemical composition of living organisms, structure, polyethylene glycol properties and role identified in these compounds, the ways of their origin and transformation, called biological chemistry, and biochemistry. This science polyethylene glycol as a branch of biology was formed polyethylene glycol in the second half of the XIX century. Modern biochemistry examines the living polyethylene glycol matter at different levels of organization: molecular, cellular, organismal. One of its main tasks - to clarify the mechanisms of regulation of cellular and organism as a whole, providing unity of metabolic processes and energy conversion in the body.
What is the basic chemical composition of living organisms? Living organisms contain nearly all known chemical elements in nature. Some of them are found in all organisms, without polyethylene glycol exception, others - only in rare and occur rarely (see table).
The chemical composition of living organisms is relatively stable. In the largest number of them are available in four chemical elements hydrogen, carbon, nitrogen and oxygenation. polyethylene glycol Their share in the chemical composition of the cell is about 98%, and they belong to the macro. They are also called organic because polyethylene glycol first of all these elements are part of organic compounds.
By macro also include phosphorus, potassium, sulfur, chlorine, calcium, magnesium, sodium and iron, their total share of 1.9%. More than 50 chemical elements referred to as micronutrients (iodine, cobalt, manganese, copper, molybdenum, zinc, etc.). Their content in the cell - from 10 -12 to 10 -3%. Even less in the cell ultramicroelements: Lead, bromine, Arhentumu, aura, etc.. Chemical elements contained in the cell are part of the organic and inorganic compounds, or are in the form of ions.
The chemical composition of all living organisms is relatively similar. Instead, the various components of inanimate nature it is different. For example, in a water shell of the Earth (hydrosphere) are dominated by hydrogen and oxygen, polyethylene glycol in the gas (atmosphere) - oxygenation and nitrogen in solid (lithosphere) polyethylene glycol - silicon, polyethylene glycol oxygen and others.
The chemical composition of living organisms, unlike polyethylene glycol inanimate objects, relatively stable. In vivo occurs about 60 chemical elements. Some of them are required for all organisms without exception, others - found only in members of particular species. Depending on the content of chemical elements in organisms are divided into macro (containing more than 99,9%) and trace (less than 0.1%). Hydrogen, carbon, nitrogen, oxygen belongs to the organogenic elements as they occur most frequently in the composition of organic compounds, and their combined share of almost 98% of the chemical content of living beings. More than 60 items belonging to the group of trace elements (iodine, cobalt, manganese, copper, polyethylene glycol molybdenum, zinc, etc.), their content in the cell is between 1012% to 10.3%.