Photosynthesis refers to the process in which plant cells and bacteria containing photosynthetic pigments absorb light energy, assimilate inorganic matter into organic matter and release oxygen. The significance of photosynthesis is: ① convert inorganic matter into organic matter; ② convert light energy into chemical energy; ③ maintain the balance of oxygen and carbon dioxide concentrations in the atmosphere.
Photosynthesis provides food, energy and oxygen for all living things to maintain respiration and the ozone layer to defend against ultraviolet rays. It has become the basis, key link and driving force for the formation, development, prosperity and continuous operation of the biosphere.
Photosynthesis has become a science involving aspects such as photophysics, photochemistry, biochemistry and physiological ecology, and molecular biology of photosynthesis. It is estimated that terrestrial photosynthetic organisms convert approximately 106 billion tons of carbon fixation into organic compounds each year.
Photosynthesis consists of two stages, the light reaction and the dark reaction. Photoreactions must take place in the presence of light, and chemical reactions induced by light take place on thylakoid membranes (photosynthetic membranes). Dark reactions are carried out in the dark or in the light, chemical reactions catalyzed by several enzymes, in the chloroplast stroma (the soluble part of the chloroplast). In 1988, the Nobel Prize Committee declared that “photosynthesis is the most important chemical reaction on earth” (Frangsmyr and Malmstrom, 1992), “one of the most important top-level creations of life” It is in a very critical position in the process of biological evolution, the formation and operation of the biosphere, the birth of human beings and the sustainable development of economy and society.
The concept of plant photosynthesis
Photosynthesis refers to the process in which plant cells and bacteria containing photosynthetic pigments absorb light energy, assimilate inorganic matter into organic matter and release oxygen. The significance of photosynthesis is: ① convert inorganic matter into organic matter; ② convert light energy into chemical energy; ③ maintain the balance of oxygen and carbon dioxide concentrations in the atmosphere.
Photosynthesis provides food, energy and oxygen for all living things to maintain respiration and the ozone layer to defend against ultraviolet rays. It has become the basis, key link and driving force for the formation, development, prosperity and continuous operation of the biosphere.
Photosynthesis has become a science involving aspects such as photophysics, photochemistry, biochemistry and physiological ecology, and molecular biology of photosynthesis. It is estimated that terrestrial photosynthetic organisms convert approximately 106 billion tons of carbon fixation into organic compounds each year.
Photosynthesis consists of two stages, the light reaction and the dark reaction. Photoreactions must take place in the presence of light, and chemical reactions induced by light take place on thylakoid membranes (photosynthetic membranes). Dark reactions are carried out in the dark or in the light, chemical reactions catalyzed by several enzymes, in the chloroplast stroma (the soluble part of the chloroplast). In 1988, the Nobel Prize Committee declared that “photosynthesis is the most important chemical reaction on earth” (Frangsmyr and Malmstrom, 1992), “one of the most important top-level creations of life” It is in a very critical position in the process of biological evolution, the formation and operation of the biosphere, the birth of human beings and the sustainable development of economy and society.