MCQ on Microbial Nutrition

The signalling molecule secreted by bacterial species during quorum sensing:

The bacteria can be best stored under starvation at 40C than at 370C because:

A secretory system in Gram-negative bacteria with shows similarities with the flagella is:

Under which phase of the growth the bacteria increases their size but do not divide?

Smooth movement of the bacteria during the chemotaxis is due to:

It has been observed that the bacteria secrete certain chemicals at high population density to check the population size. This phenomenon is termed as:

The Type III secretory system is present in:

What will be the decreasing order of viability of bacteria if they are stored at (a) 4-9°C (b) 0°C (c)-196°C

Which of the following is an example for chemolithotroph?

Which of the following is the most complex secretory system in bacteria?

Bacterial flagella and the ___________ secretory system of Gram-negative bacteria shares a common ancestry.

Exponential growth in bacteria would be expected during _____ phase of growth curve.

The major function of type‐III secretion by pathogenic bacteria is:

Chemolithotrophs obtain their carbon from CO2 and energy from:

The electron acceptor in the anaerobic conditions in prokaryotes is: