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Packet G: Bonus 16

Two answers required. A baby’s lungs are considered mature if the ratio between these two molecules is more than 2-to-1. For 10 points each:
[10h] Name these two compounds. One of these compounds is found in the lipid that surrounds nerve cell axons, and the other is a type of amphiphilic yellow-brown fatty substance found in animal tissue.
ANSWER: sphingomyelin AND lecithin (“LESS-uh-thin”) [accept lecithin–sphingomyelin ratio; prompt on L/S ratio; prompt on partial answers; reject “myelin”]
[10e] The lecithin-sphingomyelin ratio is tested using this substance. This liquid fills the “sac” around a fetus.
ANSWER: amniotic fluid [accept amniotic sac]
[10m] The centesis of amniotic fluid to test genetic material is usually safer than a “chorionic sampling” procedure named for these structures. These structures can atrophy from inflammation due to conditions like celiac disease.
ANSWER: villi [accept microvilli; accept chorionic villus sampling]
<Chicago B, Biology> | Packet-G_Chicago-B_Ohio-State-A_UW-B

HeardPPBE %M %H %
5214.2396%42%4%

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Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
Columbia CHaverford A0101020EM
George Washington BPenn B010010E
Johns Hopkins AVassar A0101020EM
Maryland AJohn Jay College010010E
Maryland BPenn A0101020EM
NYU AColumbia B010010E
NYU BYale A010010E
Rutgers AGeorge Washington A0101020EM

Summary

TournamentEditionMatchHeardPPBE %M %H %
California2025-02-01✓313.33100%33%0%
Florida2025-02-01✓120.00100%100%0%
Lower Mid-Atlantic2025-02-01✓313.33100%33%0%
Midwest2025-02-01✓616.67100%50%17%
North2025-02-01✓313.33100%33%0%
Northeast2025-02-01✓510.0080%20%0%
Overflow2025-02-01✓58.0080%0%0%
South Central2025-02-01✓215.00100%50%0%
Southeast2025-02-01✓412.50100%25%0%
UK2025-02-01✓1017.00100%70%0%
Upper Mid-Atlantic2025-02-01✓815.00100%50%0%
Upstate NY2025-02-01✓220.00100%50%50%