Microbes in Human Welfare Questions

Full potential of penicillin as an effective antibiotic was established by :-

Which of the following is produced by a bacteria?

Match the column-I with column-II and select correct option.

Which of the following option is not correct.

After Rene descartes, natural sciences were mainly directed towards:

Assertion (A): Rhizobium forms symbiotic association with roots of non-leguminous plants like Alnus. Reason (R): Frankia forms nitrogen-fixing nodules in non-leguminous plants.

Assertion (A): Methanogens grow aerobically on cellulosic material to produce methane. Reason (R): Methanogens are obligate anaerobes found in rumen and sludge.

Assertion (A): Trichoderma polysporum is used as a biocontrol agent against plant pathogens. Reason (R): It is a free-living fungus found in the root ecosystem.

Assertion (A): Streptokinase is used as a clot buster in patients suffering from myocardial infarction. Reason (R): It is produced by Streptococcus and helps dissolve blood clots.

Assertion (A): During secondary treatment of sewage, the BOD of the effluent increases until the organic matter is consumed. Reason (R): Aerobic microbes consume organic matter, thereby increasing oxygen demand.

Which of the following statements regarding Biofertilizers is INCORRECT?

Identify the INCORRECT statement about Biogas production:

Read the following statements (i-iv) and identify the CORRECT ones: (i) Trichoderma polysporum is a free-living fungus used in the treatment of plant diseases. (ii) Statins are produced by the bacterium Monascus purpureus. (iii) Baculoviruses are pat

Regarding the enzyme Streptokinase, which statement is INCORRECT?

Identify the INCORRECT statement regarding Sewage Treatment:

In the standard diagram of a biogas plant, the floating cover is placed over the slurry to:

The primary effluent is passed into large aeration tanks where it is constantly agitated mechanically and air is pumped into it. This allows the growth of:

Integrated Pest Management (IPM) is specifically useful for:

The bioactive molecule "Statins" acts by:

In Mycorrhiza, the fungus helps the plant in:

Which of the following is NOT a nitrogen fixer?

Penicillin was extensively used to treat American soldiers in:

Which of the following is an example of an "Amoeboid" biocontrol agent?

The metabolic pathway for ethanol production by yeast is:

Match Column A with B: (1) Citric Acid (2) Butyric Acid (3) Lactic Acid (4) Acetic Acid (A) Lactobacillus (B) Acetobacter aceti (C) Aspergillus niger (D) Clostridium butylicum

Alexander Fleming discovered Penicillin while working on:

The first antibiotic discovered was:

Antibiotics are essentially:

The ladybird beetle is used to control:

Organic farming does not include:

Rhizobium forms symbiotic association with:

Cyanobacteria like Anabaena and Nostoc are important biofertilizers in:

The genus Glomus is known for forming:

Mycorrhiza is a symbiotic association between:

Which of the following is a free-living nitrogen-fixing bacterium?

Biofertilizers are organisms that:

A microbial biocontrol agent that is used to control several plant pathogens is the fungus:

Baculoviruses (Nucleopolyhedrovirus) are excellent candidates for:

Dragonflies are used to get rid of:

Which of the following is used as a biocontrol agent against butterflies and caterpillars?

The residue left after biogas production is used as:

Methanogens grow anaerobically on:

The main gas present in Biogas is:

The technology of biogas production was developed in India mainly due to the efforts of:

Methanogens are found in:

The purpose of aeration in secondary treatment is to:

Secondary treatment is also known as:

The Ministry of Environment and Forests initiated which plans to save major rivers from pollution?

Which treatment stage removes floating debris?

High BOD in a water body indicates that: