SCIENCE
PLANT KINGDOM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Half of total CO2
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One fourth of total CO2
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Total Complete CO2
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2 times of CO2 available
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Detailed explanation-1: -Nearly 50% of total carbon dioxide fixation is carried out by algae through photosynthesis. Photosynthesis by algae releases, ’oxygen in the immediate aquatic environment. It is essential for respiration of aquatic life.
Detailed explanation-2: -At least a half of the total carbon dioxide fixation on earth is carried out by algae through photosynthesis.
Detailed explanation-3: -Marine phytoplankton account for more than half of the carbon dioxide fixation of Earth.
Detailed explanation-4: -All the autotrophs, bacteria, algae and plants fix atmospheric carbon dioxide by the process of photosynthesis or chemosynthesis.
Detailed explanation-5: -Using the energy carriers formed in the first stage of photosynthesis, the Calvin cycle reactions fix CO2 from the environment to build carbohydrate molecules. An enzyme, RuBisCO, catalyzes the fixation reaction, by combining CO2 with RuBP.