Question

N. C. and D.-D. H. Yang discovered a reaction in which this phenomenon causes C-H functionalization. Reactions involving this phenomenon are often promoted by adding a catalytic amount of benzophenone. The first organic reaction known to involve this phenomenon is the rearrangement of santonin. (-5[1])This phenomenon cleaves a carbonyl in both types of Norrish reactions. (15[1]-5[1])In one biosynthetic pathway, this phenomenon causes a ring opening in (*) 7-dehydrocholesterol. This (10[1])phenomenon causes the formation of a cyclobutane ring connecting two adjacent pyrimidines, creating thymine dimers (10[1])and consequently causing DNA damage. (10[2])This phenomenon causes the formation of molecular oxygen and oxygen radicals as part of an atmospheric cycle that absorbs this phenomenon. (-5[1])For 10 points, name this component of sunlight (10[1]-5[1])used in the biosynthesis of vitamin D. ■END■ (10[3]0[1])

ANSWER: ultraviolet light [or UV light; accept UV-A, UV-B, or UV-C; prompt on sunlight, light, electromagnetic radiation, irradiation, or photons; reject other specific types of light]
<Gerhardt Hinkle, Chemistry>
= Average correct buzz position

Summary

2023 Penn Bowl (Harvard)10/21/2023Y3100%33%0%79.00
2023 Penn Bowl (Mainsite)10/21/2023Y786%0%57%104.67
2023 Penn Bowl @ Waterloo10/28/2023N4100%0%25%98.00
2023 Penn Bowl @ FSU10/28/2023N2100%0%0%79.00
2023 Penn Bowl (Norcal)10/28/2023N2100%0%50%107.50
2023 Penn Bowl (South Central)10/28/2023N3100%0%33%108.67
2023 Penn Bowl (UK)10/28/2023N580%20%60%101.75
2023 Penn Bowl @ UNC10/28/2023N3100%33%0%67.33

Buzzes

PlayerTeamOpponentBuzz PositionValue
Cade ReinbergerRITCornell B43-5
Jason HongBrownHarvard5415
Geoffrey WuColubmia BUMD A54-5
John ChaTuftsMIT6710
Sinecio MoralesJHU ASwarthmore8210
Munir SiddiquiUMD BJHU B8710
Moses KitakuleColumbia AJohn Jay8710
Samuel WangPittCornell A108-5
Eli IssoksonBrandeisBoston College11610
Lexi TermanRutgersNYU116-5
Eshan PantNYURutgers1240
Richard NiuCornell BRIT12410
Jacky XuCornell APitt12410
Andy YuUMD AColubmia B12410