Back to MICROBES IN HUMAN WELFARE
NEET UG BIOLOGY MCQ: MICROBES IN HUMAN WELFARE
1
Hard
1 of 1
Remembering
+4 | -1
Which of the following serve as biofertilizer in paddy fields?
View answer and explanation
Correct option: C
Cyanobacteria (blue-green algae)
Option C (Cyanobacteria (blue-green algae)) is correct because cyanobacteria, also known as blue-green algae, can fix atmospheric nitrogen in paddy fields, acting as a natural biofertilizer.
More Questions from MICROBES IN HUMAN WELFARE
Practice All Chapter MCQs →
Assertion: An organ transplant patient if not
provided with cyclosporin A may reject the
transplanted organ.
Reason: Cyclosporin A inhibits activation of T-cells
and interferes with destruction of non-self cells. Assertion (A): Streptokinase acts as a clot-buster.
Reason (R): Streptokinase is given to patients who have undergone myocardial infarction. The bacterium that commonly lives in animal and human intestine is Consider the following statements I. Ladybirds and dragonflies are used to get rid of aphids and mosquitoes II. The bacteria Bacillus thuringiensis (Bt) are used to control caterpillar III. Trichoderma sp. free living fungi, are present in root ecosystems where they act against several plant pathogens IV. Rhizobium is a symbiotic bacterium that lives in the stem of legumes Which of the statements given above are correct? Methanogens, growing anaerobically on cellulosic material, produce Clot buster agent streptokinase is produced by
provided with cyclosporin A may reject the
transplanted organ.
Reason: Cyclosporin A inhibits activation of T-cells
and interferes with destruction of non-self cells. Assertion (A): Streptokinase acts as a clot-buster.
Reason (R): Streptokinase is given to patients who have undergone myocardial infarction. The bacterium that commonly lives in animal and human intestine is Consider the following statements I. Ladybirds and dragonflies are used to get rid of aphids and mosquitoes II. The bacteria Bacillus thuringiensis (Bt) are used to control caterpillar III. Trichoderma sp. free living fungi, are present in root ecosystems where they act against several plant pathogens IV. Rhizobium is a symbiotic bacterium that lives in the stem of legumes Which of the statements given above are correct? Methanogens, growing anaerobically on cellulosic material, produce Clot buster agent streptokinase is produced by