Ways to Inhibit QS
What will be an ideal response?
•Approach #1: Modify the signal
-Analog substitution in AI production pathway that stops synthesis
-Modify AI molecule so it does not bind with receptor
•Ex: Erwinia response: lactonolysis via pH change
•Approach #2: Modify the receptor
-Destroy receptor, so signal can't be "heard"
-Use an AI mimic to competitively inhibit receptor
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All of the following statements concerning
Archaea are correct with one exception. Select the exception.
a. all are single-celled b. all have DNA c. none have a nucleus d. they are most closely related to bacteria e. some are producers
Proteins that function as a catalyst
A) slow down the speed at which chemical reactions occur but do not alter the final products formed. B) facilitate chemical reactions by altering the final products formed. C) maintain primary structure. D) can participate only in reactions that synthesize new products. E) are referred to as enzymes.
The mutation labeled as 1 to the far right in the accompanying figure represents:a
legs developing where antenna should be. b. appendages of the eyes.
c. enlarged antennae. d. newly formed structures to remove pollen or dust from the eyes. e. a revision of the fly body so that legs and antenna have switched places.
What do capsules protect bacteria from?
a. osmotic lysis b. invaders c. radiation d. viruses