BIOLOGICAL CLASSIFICATION
KINGDOM PROTISTA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Plant roots expel gaseous carbon into the soil as they grow.
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Burning fossil fuels takes solid carbon and puts it into gaseous form.
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Rocks become richer in carbon as they continue to be exposed to air.
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Photosynthetic organisms take gaseous carbon and convert it to solid carbon.
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Detailed explanation-1: -Carbon fixation is the process wherein photosynthetic organisms (such as plants) turn inorganic carbon into organic compounds (carbohydrates). CO2 fixation, for instance, is a type of carbon fixation wherein carbon dioxide from the atmosphere is converted into carbohydrates.
Detailed explanation-2: -Carbon Fixation Definition. “Carbon fixation is the process by which plants fix atmospheric carbon to form organic compounds.” All the autotrophs, bacteria, algae and plants fix atmospheric carbon dioxide by the process of photosynthesis or chemosynthesis.
Detailed explanation-3: -The Calvin Cycle: Carbon Fixation Reaction. The carbon fixation cycle is also called the Calvin cycle, after Melvin Calvin who first identified it, and the C3 cycle, due to the three-carbon acid that is produced in the first step. The Calvin Cycle consists of three stages: carboxylation, reduction, and regeneration.
Detailed explanation-4: -The number of carbon atoms remains the same, as the atoms move to form new bonds during the reactions (3 atoms from 3CO2 + 15 atoms from 3RuBP = 18 atoms in 3 atoms of 3-PGA). This process is called carbon fixation, because CO2 is “fixed” from an inorganic form into an organic molecule.