Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 17034
TLS Online TPP Program

#Question id: 14829

A new drug is developed that inhibits formation of the flagellar filament by impairing production of the protein flagellin. Is this going to be a good drug?

#XL - S Microbiology
  1. Potentially-it would definitely only impair bacteria, but wouldn't matter for the ones that don't use a flagellum to move around.
  2. Potentially-if it could be shown that it also didn't impair the production of the eukaryotic flagellum.
  3. No-our eukaryotic cells depend on flagella to move around in our body, and this would impair that function.
  4. No-bacterial flagella are produced using microtubules, not the protein flagellin. This drug would be useless in eliminating bacteria.
More Questions
TLS Online TPP Program

#Question id: 4963

#XL - S Microbiology

Which free-living cells were the earliest contributors to the formation of Earthʹs oxidizing atmosphere?
TLS Online TPP Program

#Question id: 19833

#XL - P Chemistry

Correct structure of SF4 is
TLS Online TPP Program

#Question id: 3056

#XL - S Microbiology

Ten bacteria were inoculated into a rich medium. If at the end of ten hours the total number of cells is 10^4, then the number of elapsed generations and the generation time respectively is
TLS Online TPP Program

#Question id: 2073

#XL - S Microbiology

The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membrane—more acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of:
TLS Online TPP Program

#Question id: 5737

#XL - T Zoology

When an organism gains one extra copy of a chromosome but not a complete haploid set, the conditions is known as