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TLS Online TPP Program

#Question id: 1035

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?

#Unit 4. Cell Communication and Cell Signaling

  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.

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TLS Online TPP Program

#Question id: 24254

#Unit 2. Cellular Organization

Choose the incorrect statement
TLS Online TPP Program

#Question id: 12638

#Unit 6. System Physiology – Plant

strigolactone biosynthesis takes place , find the correct sequence of these signal transduction pathways;
a) D14* hydrolyses strigolactone and releases the products of hydrolysis. 
b) D14 disengages from the SCFMAX2 complex and returns to its original conformation, allowing it to respond to fresh strigolactone signal.
c) D14* interacts with the F-box protein MAX2 and the other partners of the SCFMAX2 ubiquitin ligase complex.
d) The α-/β-fold hydrolase D14 binds and reacts with strigolactone, changing its conformation to the active form, D14*
e) Target protein(s) are recognized by the D14*–SCFMAX2 complex and are ubiquitinated
TLS Online TPP Program

#Question id: 2313

#Unit 2. Cellular Organization

In which of the following cells would you expect to find the most mitochondria?
TLS Online TPP Program

#Question id: 15985

#Unit 12. Applied Biology

 which of the following phytohormones is enhances the immune system of the plant?
TLS Online TPP Program

#Question id: 1566

#Unit 4. Cell Communication and Cell Signaling

Histamines trigger dilation of nearby blood vessels, and increase in their permeability. Which of the signs of inflammation are therefore associated with histamine release?