Transport vesicles

a. can have a clathrin coat.     b. can be coated with a heteromeric COPI and COPII coat.

c. can contain assembly proteins.

d. can shuttle proteins from mitochondria to the endoplasmic reticulum.

e. can fuse with target organelles.

TLS Online TPP Program

#Question id: 20323

#Unit 4. Cell Communication and Cell Signaling

The human pathogen Pseudomonas aeruginosa produces and secretes following virulence factors, except

TLS Online TPP Program

#Question id: 20324

#Unit 4. Cell Communication and Cell Signaling

What is the main difference between Gram positive and Gram-negative quorum sensing mechanism?

TLS Online TPP Program

#Question id: 20325

#Unit 4. Cell Communication and Cell Signaling

In Gram-negative bacteria, autoinducers are often produced from

TLS Online TPP Program

#Question id: 20326

#Unit 4. Cell Communication and Cell Signaling

Which of the following is an auto inducer for Vibrio fischeri?

TLS Online TPP Program

#Question id: 20327

#Unit 4. Cell Communication and Cell Signaling

What happens when Vibrio fischeri are at a high density on squid?

TLS Online TPP Program

#Question id: 20328

#Unit 4. Cell Communication and Cell Signaling

Acyl-homomserine lactones (AHLs) are auto-inducers used by Gram-negative bacteria to communicate. Which statements are about that Quorum sensing signaling in bacteria. 

a. transcription is activated at low cell density

b. transcription is not activated at low cell density

c. transcription is activated at high cell density

d. transcription is not activated at high cell density

e. Upon reaching a threshold concentration, AHL can bind to its receptor LuxR.

f. Upon reaching a threshold concentration, AHL can bind to Lux box.