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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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11
Which scientist is credited with the discovery of the antibiotic Penicillin?
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12
In which bacterium does CO2 fixation occur using coenzyme A and reduced ferredoxin, despite the process being photosynthetic?
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13
Which group of organisms is considered the most effective source of biofertilizers?
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14
What is the nature of the relationship between nitrogen-fixing bacteria and the roots of leguminous plants?
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15
Which of the following bacterial genera is primarily responsible for the process of ammonification in the nitrogen cycle?
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16
Which of the following substances is classified as a biofertilizer?
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17
Which of the following statements regarding the use of biofertilizers are accurate?
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18
Which of the following is a well-known example of a free-living, nitrogen-fixing bacterium?
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19
Which of the following organisms are commonly utilized as bio-fertilizers in agricultural practices?
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20
Agrimycin is a commercial antibiotic mixture composed of which two substances?
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