Microbiology MCQs Mock Test – Chapter 73

A major ingradient of penicillin production media is

Skin of the healthy person has normal microbial flora which includes

Which of the following does not inhibit cell wall synthesis?

The micro-organism useful for fermentation are

Microorganisms used for alcohol production

The smallest amount of chemotherapeutic agents required to inhibit the growth of the organism in Vitro is known as?

Cellulose are produced from

Sporadic summer diarrhea may be caused by

Main causative organism of gas gangrene is

Industrial Production of Vitamin-B12 is from

Salmonella which can cause prolong septicaemia.

The pyruvate, dehydrogenase ??? multi enzyme complex does not occur in

bacitracin sensitivity test is done for

The best test for the susceptibility of a microorganism to antibiotics and other chemotherapeutic agents:

Clear-zones formation around antibiotic disc is due to

Batch fermentation is also called?

For amy lase product ion the m icroorganism required is

For streptomycin production the microorganisms required are

Pfeiffer phenomenon is related to

Protoplasts can be prepared from

Erythromycin inhibits protein synthesis by

Bacitracin is obtained from

Nalidixic acid activity is due to

Which of the following involves the formation of nitrate from ammonia

The effect of antibiotics on micro organisms is mainly due to

If the microorganisms are allowed to nutrient medium is called

Causative organism of whooping cough is

Diphtheria toxins are produced from the strains of C.diphtheriae, which are

Vancomycin is obtained from

To differentiate lactose and non-lactose fermentors the medium used is

Different methods of strain improvement are

Bacterial resistance to antibiotics is transmitted by

Aspergillus niger is used generally for the production of

E.coli produce which type of toxins?

The best medium for the production of Penicillin is

Industrially important Antibiotic producing organisms shall be isolated by

Diagnostic test for the identification of primary syphilis:

Clostridium acetobutylicum is used for the production of

In the production of ethanol industrially the yeast used is

The antibiotic acting on cell wall is

Resistant to drugs in tuberculosis develops by

Which agent on addition to a colony inhibits its growth and on removal the colony regrows is?

The antibiotic produced from Bacillus subtilis is

Streptokinase is produced by

Biological false reaction in VDRL is related to

L. lysine is produced from

The penicillin produced in large scale submerged fermentations are

In Tuberculosis therapy mainly used antibiotic is

V itam in B12 can be estimated and determined by using organism

The antibacterial action of penicillin is due to its effect on