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Microbiology: Probiotics and Bacteriocins

14 Questions

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Microbiology: Probiotics and Bacteriocins

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Questions and Answers

What is the antibacterial substance produced by Bacillus NM-12?

Protease

Bacteriocin

Defroxamine

Siderophore (correct)

Which bacterium is able to colonize and proliferate in the gut of P.monodon larvae?

Alteromonas sp.

Bacillus S11 (correct)

Aeromonas

Vibrio E

What is the function of the protease produced by Saccharomyces boulardii?

Producing siderophores

Inhibiting pathogenic fungi

Removing toxin receptors (correct)

Exhibiting antibacterial activity

What is the compound produced by Alteromonas sp. (strain 1-2) that inhibits the growth of pathogenic fungi?

2, 3-indolinedione (Isatin) Signup and view all the answers

What is the characteristic of the protein produced by Alteromonas-like bacterium (strain No. 6)?

Thermolabile and high molecular weight Signup and view all the answers

What is the function of Saccharomyces boulardii in relation to diarrheal infections?

Showing a putative immunotherapeutic effect Signup and view all the answers

What is the effect of Lactobacillus on the growth of microorganisms?

They inhibit the growth of microorganisms. Signup and view all the answers

What is the name of the bacteriocin produced by L.lactis?

Nisin Signup and view all the answers

What is the effect of Lactococcus on the growth of Brachionus plicatilis?

It enhances the growth of Brachionus plicatilis. Signup and view all the answers

What is the target of Leuconostoc?

Listeria monocytogenes Signup and view all the answers

What is the effect of Carnobacterium on lactic acid bacteria?

It inhibits the growth of lactic acid bacteria. Signup and view all the answers

What is the mechanism by which Bacillus inhibits the growth of other bacteria?

It competes for nutrients. Signup and view all the answers

What is the effect of Bacillus on resistant bacteria?

It inhibits the growth of resistant bacteria. Signup and view all the answers

What is the role of Lactobacillus in the gut?

It produces lactic acid, which inhibits the proliferation of putrefactive microbes. Signup and view all the answers