The cosmic role of plants has long been proven by many scientists. A special role in the study of this process was played by the Russian researcher Kliment Timiryazev. It was he who proved that this process is vital. What structural features are based on this unique property of plant organisms?
The cosmic role of green plants
All living organisms are characterized by certain signs. However, they all need oxygen in order to carry out the respiration process. The cosmic role of plants is to provide all organisms with this vital substance. Only plants are capable of producing it in a unique process called photosynthesis.
Representatives of plants: characteristic features of the structure
Why do other organisms not produce oxygen in the process of their life? Because only plants have unique structural features. First of all, this is the presence of green chloroplast plastids in the cell. On the inner surface of these organelles, a process of photosynthesis takes place, which determines the cosmic role of plants. The presence of cellulose carbohydrate in the cell wall is also characteristic of representatives of this kingdom of wildlife . This substance gives the surface apparatus strength and rigidity. Starch granules are deposited in the cytoplasm of cells as a reserve nutrient. This polysaccharide is formed from numerous glucose molecules synthesized during photosynthesis. Unlimited growth is also characteristic of plants. This means that the process of quantitative changes in them occurs throughout life.
The essence of the photosynthesis process
So, the cosmic role of plants is manifested during photosynthesis. The very name of this process indicates the participation of solar radiation in it. Indeed, photosynthesis consists in the formation of organic substances from minerals, provided that light quanta are present. It occurs only in green chloroplast plastids. On their inner surface, carbon dioxide interacts with water. The products of this unique chemical reaction are glucose monosaccharide and oxygen. The first substance of the plant is used as an energy source for the implementation of vital processes. And oxygen is involved in the breathing processes of absolutely all living organisms.
Photosynthesis conditions
The synthesis of organic substances and oxygen, which is the cosmic role of plants on earth, is possible only in the presence of sunlight. Scientists have proved that the intensity of photosynthesis also depends on its quantity. It rises to illumination of 15 thousand lux, and then goes into decline. In the fall there is a natural decrease in the amount of sunlight. As a result, the leaves change color and fall off. The essence of this process is to turn green plastids into yellow and crimson, which are called chromoplasts. In this case, the sheet can no longer fulfill its functions and ceases to function. Leaf fall has a protective value for plants in the cold period, since this process practically stops transpiration. After all, losing moisture during its lack is very unreasonable.
Solar radiation is necessary only in the first phase of photosynthesis. It is called light. During this period, energy is accumulated to trigger a complex chemical reaction and activate chlorophyll. After that, the light is no longer needed. The dark phase sets in, during which the accumulation of carbohydrates occurs. Also mandatory conditions for the occurrence of photosynthesis is the presence of water and carbon dioxide.
Photosynthesis: the cosmic role of plants
Plants carry out an amazing cycle. They emit oxygen, all living organisms use this substance to oxidize organic substances, as a result of which they emit carbon dioxide. It is he who is a necessary condition and reagent in the process of photosynthesis. Only plants are capable of this. By type of nutrition, they are autotrophs capable of independently producing organic matter. The cosmic role of green plants is to provide the necessary conditions for the life of living organisms. Moreover, if it is traditionally believed that forests are the "lungs of the planet", then in fact a huge part of the oxygen produced on the planet is accounted for by aquatic plants.
So, the cosmic role of plants is to carry out the process of photosynthesis. In its course, in the presence of water and carbon dioxide in chloroplast plastids, the magic appearance of glucose and oxygen occurs, which is necessary for the respiration of all living organisms living in the biosphere.