Packet 1: Bonus 8
Safranin is utilized as a counter in one form of this technique where peptidoglycan traps an iodine-crystal violet complex. For 10 points each,
[10e] Name this technique whose “Gram” form can colorize bacterial cells. It is a common practice in histology.
ANSWER: staining [accept Gram stain]
[10h] This genus, whose cell wall lacks muramic acid, cannot be visualized using a gram stain. The A-C serovars of its trachomatis species can cause the eyelids to turn inward, potentially resulting in blindness.
ANSWER: Chlamydia [Accept Chlamydia trachomatis; prompt on C. trachomatis]
[10m] This acid-fast genus can’t be detected via a gram-stain due to high lipid content in its cell wall. A bacteria in this genus causes tuberculosis.
ANSWER: Mycobacterium [accept Mycobacterium tuberculosis]
<Science - Biology, Rohan Ganeshan> | VAULT II Packet 01
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 6 | 18.33 | 100% | 67% | 17% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| Chattahoochee B | Innovation A | 10 | 0 | 0 | 10 | E |
| Exhibition | Lambert B | 10 | 0 | 10 | 20 | EM |
| Hoover | Midtown | 10 | 0 | 10 | 20 | EM |
| Innovation B | Chattahoochee A | 10 | 0 | 0 | 10 | E |
| Johns Creek | Northview B | 10 | 0 | 10 | 20 | EM |
| Northview A | Lambert A | 10 | 10 | 10 | 30 | EHM |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| VAULT II at Georgia Tech | 2026-01-24 | ✓ | 6 | 18.33 | 100% | 67% | 17% |
| Triangle Cup | 2026-03-13 | ✕ | 2 | 5.00 | 50% | 0% | 0% |
| VAULT II at Eden Prairie HS | 2026-03-13 | ✕ | 3 | 10.00 | 100% | 0% | 0% |
| VAULT II at McGill | 2026-03-13 | ✕ | 4 | 7.50 | 75% | 0% | 0% |
| VAULT II at UCSB | 2026-03-13 | ✕ | 4 | 15.00 | 100% | 50% | 0% |
| VAULT II Northern UK | 2026-04-24 | ✕ | 3 | 6.67 | 67% | 0% | 0% |
| VAULT II Southern UK | 2026-04-24 | ✕ | 4 | 15.00 | 100% | 50% | 0% |
| VAULT II at Harvard | 2026-04-30 | ✕ | 4 | 7.50 | 25% | 25% | 25% |
| VAULT II at MINT | 2026-06-19 | ✕ | 5 | 14.00 | 80% | 60% | 0% |
| VAULT II Stanford Online | 2026-07-17 | ✕ | 8 | 18.75 | 100% | 75% | 13% |