ANIMAL PHYSIOLOGY
EXCRETION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Plants having root nodules secrete chemicals to attract rhizobia, these chemical compounds are called Plants having root nodules produce some chemical secretions to attract rhizobium bacteria. What are these chemicals called?
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Primary metabolites
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Secondary metabolites
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Explanation:
Detailed explanation-1: -Rhizobium spp. are soil-dwelling -Proteobacteria that can fix nitrogen in a symbiotic relationship with leguminous plants. Nodules develop on the roots of nitrogen-starved legumes such as peas, beans, clover, and soy.
Detailed explanation-2: -Rhizobium bacteria is often found in the roots of legumes which help in nitrogen fixation. So, it is present inside root nodules of peas, beans and peanuts.
Detailed explanation-3: -Rhizobium is a bacterium found in soil that helps in fixing nitrogen in leguminous plants. It attaches to the roots of the leguminous plant and produces nodules. These nodules fix atmospheric nitrogen and convert it into ammonia that can be used by the plant for its growth and development.
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