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Nitrogen-fixing and Industrially Important Bacteria MCQs for Competitive Exams

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Nitrogen-fixing and Industrially Important Bacteria MCQs for Competitive Exams

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Topic Notes: Nitrogen-fixing and Industrially Important Bacteria

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Nitrogen-fixing and Industrially Important Bacteria MCQs in Biology are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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41
Which type of crop benefits most significantly from the application of nitrogen-fixing bacteria?
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42
What is the primary physiological role of leghaemoglobin during the process of biological nitrogen fixation in root nodules?
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43
What is the term for the severe disease state in wheat plants caused by a systemic infection during the early stages of development?
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44
Which of the following organisms is utilized as a bioherbicide?
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45
In the context of nitrogen fixation, which molecules facilitate the transfer of reducing power to the nitrogen-fixing membrane in bacteroids?
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46
Which chemical species serves as the electron donor during the oxidation process in the bacterium Nitrosomonas?
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47
Which bacterial genus, often modified through genetic engineering, is utilized for the bioremediation of oil spills?
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48
Which type of biofertilizer is specifically known for solubilizing bound phosphate in soil to increase its availability to plants?
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49
Evaluate the following statements: (A) Leguminous plants are nitrogen fixers. (R) Leguminous plants harbor Rhizobium bacteria within their root nodules.
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50
What is the primary chemical form of nitrogen produced by nitrogen-fixing biofertilizers?
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