please answer the last 3 questions according to Bonnie bassler video a bout bact
ID: 146550 • Letter: P
Question
please answer the last 3 questions according to Bonnie bassler video about bacteria
During Bassler's research, it was discovered that a bacterium called Vibrio fischeri living in the Hawaiian Bobtail Squid had a special property to make light during what times? When they grew to a certain cell number in a community When they were alone When they were reproducing When they died a. c. d. In Bassler's talk, she mentions that when bacteria "talk" to each other and launch their virulent attack together, they are successful in overcoming a large host. What is this process called? a. System meltdown b. Ambush c.) Quorum sensing d. High cell density What is the difference between inter-species and intra-species communication? What is virulence? Briefly describe how the 'next generation' of antibiotics might work according to Bassler.Explanation / Answer
a.When they grow to a certain cell number in a community.
Bobtail squid is a tiny creature that Harbours Colony of bacteria called Vibrio fischeri. Both these organisms live in a symbiotic relationship In this relationship which provides food to the bacteria in the form of glucose and amino acid solution whereas bacteria present in squid`s Mantle provides light that mimics moonlight So that the squid can come out at the night and hunt. The amount of light is adjusted to meet the requirement of mimicking the moonlight so that the shadow of the squid is eliminated too. This makes them the efficient hunter at night.
The bioluminescence of A. fischeri is caused by transcription of the lux operon, which is induced through population-dependent quorum sensing.
b.Quorum sensing-
Quorum sensing is the phenomena in which bacteria regulate its own genes in a way that acts when cell density is maximum. This suggests that many genes of many bacteria simultaneously act together and are targeted against spreading virulence and overcoming the barrier needed to attack the host.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.