TLS Online TPP Program

#Question id: 18522


Atropine used at the time of eye testing is obtained from the leaves of

#XL - R Botany
  1. Belladona 
  2. Cinchona
  3. Calotropis
  4. None of the above
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TLS Online TPP Program

#Question id: 31419

#XL - S Microbiology

Twitching motility in bacteria is primarily mediated by:

TLS Online TPP Program

#Question id: 31420

#XL - S Microbiology

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

TLS Online TPP Program

#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

TLS Online TPP Program

#Question id: 31422

#XL - S Microbiology

Which type of bacteria have flagella spread evenly over their entire surface?

TLS Online TPP Program

#Question id: 31423

#XL - S Microbiology

Correctly match the bacterial type in Column I with their corresponding environmental niche in Column II.

 COLUMN I COLUMN II
 P. Psychrotrophs i. Can grow at 180°C or Higher
 Q. Thermophile ii. pH greater than 8
 R. Alkalophile iii. Optimum 30°C to maximum around 35°C
 S. Halophile iv. Growth more rapid at high hydrostatic pressure 
 v. Salt concentration greater than 2M

TLS Online TPP Program

#Question id: 31424

#XL - S Microbiology

Which bacterial cell wall component is recognized by the immune system as an endotoxin?