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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
Chicago AIllinois A10101030HEM
Chicago CIllinois C0101020EM
Chicago DIllinois B010010E
Indiana BIndiana A010010E
Missouri S&TWashU A010010E
WashU BMissouri0101020EM

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%