ECOLOGY
ENERGY FLOW AND PRIMARY PRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Denitrification through soil bacteria
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Nitrogen Fixation through soil bacteria
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Cellular Respiration in the plants
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Chemosynthesis in the soil
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Detailed explanation-1: -Legume crops such as beans, peanuts and soy can fix nitrogen from the air, and flourish on nitrogen-deficient soils. To do so, they need help from Rhizobium bacteria. These special bacteria stimulate the growth of nodules on the roots of leguminous plants.
Detailed explanation-2: -Detailed Solution Legumes help in the process of Nitrogen fixation. Bacteria are present in the nodules of the legumes where the process of nitrogen fixation is done by the bacteria and the NH3 produced is absorbed by the plant.
Detailed explanation-3: -The Rhizobium or Bradyrhizobium bacteria colonize the host plant’s root system and cause the roots to form nodules to house the bacteria (Figure 4). The bacteria then begin to fix the nitrogen required by the plant.
Detailed explanation-4: -The symbiotic nitrogen-fixing bacteria invade the root hairs of host plants, where they multiply and stimulate formation of root nodules, enlargements of plant cells and bacteria in intimate association. Within the nodules the bacteria convert free nitrogen to ammonia, which the host plant utilizes for its development.