Question
Pectobacterium uses this signaling process to determine whether to stay in its stealth mode or initiate plant cell maceration during its brute force mode. For 10 points each:
[10h] Name this signaling process that restricts Pectobacterium from killing its hosts at low population densities. AHL accumulated during this process in Vibrio fischeri activates the lux operon, leading to bioluminescence.
ANSWER: quorum sensing
[10e] Pectobacterium also enters its brute force mode at low levels of this element in the environment, which it senses using siderophores. Many pathogens express hemolysins to extract this metal from hemoglobin.
ANSWER: iron [or Fe]
[10m] Pseudomonas aeruginosa uses quorum sensing to form these structures in the lungs. Microbial communities often reside in these structures composed of a surface-adhering matrix such as dental plaque.
ANSWER: biofilms
<Science - Biology>
Summary
| 2024 Booster Shot (Columbia) | 02/23/2024 | Y | 6 | 15.00 | 100% | 33% | 17% |
| 2024 Booster Shot (Great Lakes) | 03/09/2024 | Y | 5 | 18.00 | 100% | 40% | 40% |
| 2024 Booster Shot (Vanderbilt) | 03/02/2024 | Y | 3 | 16.67 | 100% | 0% | 67% |
| 2024 Booster Shot (WUSTL) | 03/09/2024 | Y | 3 | 13.33 | 100% | 33% | 0% |
| 2024 Booster Shot (Waterloo) | 02/23/2024 | Y | 4 | 22.50 | 100% | 75% | 50% |
Data
| Squidward Community College | WUSTL A | 0 | 10 | 0 | 10 |
| WUSTL J | Truman State | 0 | 10 | 0 | 10 |
| WUSTL C | SIUE | 0 | 10 | 10 | 20 |