Explore topic-wise MCQs in Microbiology.

The 95% ethanol is equivalent to

Fungal amylases using stationary culture with wheat bran utilizes

Why high concentration of sugars are not employed in the fermentation medium?

Which of the following organism produces enzyme taka diastase?

Which of the following when used in proper concentration stimulates the Ascomycetes fermentation of vitamin B₁₂ and can be used to counteract toxicity of iron in Candida species?

Pectinase, an enzyme used for increasing yield and for clarifying juice is obtained by

Which species from the followings is resistant to methyl tryptophan?

Which of the following is not an industrial product made by the fungus Aspergillus niger?

Which of the following are true for the heterofermentative microorganism producing lactic acid?

The biotin level in obtaining L-gluatmic acid by fermentation using Micrococcus glutamicus is critical because

Most productive species among the different vitamin B₁₂ producing Pseudomonads is

The enzyme which converts optically active isomers of lactic acid to the optically inactive racemic mixture is

The sugar concentration of molasses used in fermentation should be

Bacitracin, an antibiotic similar to penicillin, is produced by

Which of the following was the first amino acid to be produced commercially?

The Candida species require fermentation equipment lined with plastic because they are extremely sensitive to

Cycloserine may be isolated from the cultures of

The first penicillin isolated by Alexander Fleming, penicillin F is also called

It is mandatory that cultures and fermentation residues be sterilized before discard in case of Eremothecium ashbyii and Ashbya gossypii because they are

Which of the following organism is utilized for the production of D-L-alanine?

Which of the following Ascomycetes are used for riboflavin production?

The precursor used for production of vitamin B₁₂ by Streptomyces olivaceus is

Most biopolymers produced by micro-organisms are

The sulphite waste liquor fermentation employs use of Candida utilis because of its ability to ferment

Microbial rennet, which is used in cheese manufacture is produced by

Cephalosporin an antibiotic closely related to penicillin in structure and antibiotic activity are produced by species of

The production of alcohol from lactose of whey is generally carried out by

Which of the following is not a principal media for industrial alcohol production by fermentation?

Which of the following are commercially used for bacterial amylases production?

The man who first discovered the chemical that causes souring of milk was

Which of the following species is used for vitamin B₁₂ production by fermentation process?

Malt used to ferment beer is prepared by

Which of the following is not a penicillin?

Penicillin was first produced commercially using

Glucoseoxidase, which had been commercially employed to remove glucose from egg white and whole eggs before drying is obtained by submerged aerated fermentation using

Which of the following microorganism can yield vitamin B₁₂ using methanol as a carbon source?

The method of distillation used to obtain alcohol greater than 95 percent is called

The organism commercially used for fungal fermentation to obtain citric acid is

Which of the following organisms have shown the ability of phosphate solubilization in red wine?

The organism commonly used for the production of carotene is/ are

Erythromycin a broad spectrum antibiotic is obtained with the help of

Production of L-lysine can be carried out by

The citric acid is recovered from the fermentation broth as

The first commercial fermention carried out to obtain L-lysine is known as

The precursor of Penicillin G is

The medium utilized for fungal citric acid production should be deficient in

The beet molasses is pretreated with __________ to reduce great quantity of trace metals.

"Vinegar mother" in Orleans process is

The medium required for glutamic acid mainly consist of

Flavor can be enhanced from the