In a batch culture, the specific growth rate (𝜇) of a microbe is 0.693 h^-1. What is the doubling time (in hours) of this organism?

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#Question id: 29561

#XL - R Botany

Identify the type of aestivation found in Calotropis flowers.

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#Question id: 30047

#XL - S Microbiology

which of the following observed that cork was composed of “little boxes”; and introduced the term cell ?

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#Question id: 31418

#XL - S Microbiology

Which nutritional group does a bacterium belong to if it obtains energy from a chemical source, with 𝐶𝑂2 as the principal carbon source, and an inorganic electron donor?

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#Question id: 31419

#XL - S Microbiology

Twitching motility in bacteria is primarily mediated by:

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#Question id: 31420

#XL - S Microbiology

In twitching motility, the retraction of Type IV pili is powered by:

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#Question id: 31421

#XL - S Microbiology

Which option(s) correctly match(es) the Adherence factor in a bacterial cell (Column I) with their corresponding functions (Column II). 

COLUMN I	COLUMN II
P. Fimbriae	i. Cell envelopes of some archaeobacteria that may promote adherence to surfaces
Q. Glycocalyx	ii. help attach bacteria to other bacteria or to solid surfaces
R. S layer	iii. Cell wall components in gram-positive bacteria that aid in adhesion
S. Teichoic acid	iv. viscous (sticky) and gelatinous polymer