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Packet 12: Bonus 15

Infection by Helicobacter pylori can lower the pH of this substance, leading to the formation of gastric ulcers. For 10 points each:
[10m] Name this alkaline substance secreted by foveolar cells in the stomach. This slippery substance lines the stomach and protects it from its own acid.
ANSWER: mucus [accept alkaline mucus; accept mucous membrane; accept gastric mucosa]
[10h] The maintenance of mucous membranes is supported by niacin and this fat-soluble vitamin. The “all-trans” form of a metabolite of this vitamin activates the protein rhodopsin.
ANSWER: vitamin A [accept vitamin A1 or all-trans-retinol; accept all-trans-retinal; accept all-trans-retinoic acid]
[10e] Accumulation of thick mucus in the lungs can result from the impaired secretion of this element’s anion in cystic fibrosis patients. This element and sodium form table salt.
ANSWER: chlorine [or Cl; accept chloride or Cl-]
<Editors, Biology> | Packet L

EditionsHeardPPBEasy %Medium %Hard %
210618.30100%52%31%

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Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
Columbia BVassar B1001020ME
George Mason CNYU C001010E
Lehigh BPrinceton1001020ME
Maryland AGeorge Mason A10101030MHE
Maryland BMaryland C10101030MHE
NYU ARutgers A0101020HE
NYU BLehigh A001010E
PennJohns Hopkins10101030MHE
RowanRutgers C0101020HE
Rutgers BColumbia A1001020ME
Stony BrookRutgers D1001020ME
Vassar AGeorge Mason B1001020ME

Summary

TournamentEditionExact Match?HeardPPBEasy %Medium %Hard %
UK (North)UKY518.00100%20%60%
UK (South)UKY816.25100%63%0%
Southern CaliforniaUSY717.14100%43%29%
Eastern Canada (2)USY916.67100%33%33%
Great LakesUSY1221.67100%67%50%
Lower Mid-AtlanticUSY618.33100%50%33%
Upper Mid-AtlanticUSY1220.83100%67%42%
MidwestUSY918.89100%56%33%
NortheastUSY1215.00100%25%25%
PacificUSY916.67100%44%22%
SoutheastUSY1219.17100%58%33%
Upstate NYUSY520.00100%100%0%