Accepted at 5:49 a.m. Feb, 29, 2024 by Michael_B
Author: Brian_BH
Related Note: 1554212849878
Rationale for change

QID 403551:

Question requires understanding the explicit definition of what constitutes an anomeric carbon, in order to be able to understand not just what it is, but to identify it in a cyclic saccharide so as to choose the correct answer optiono and avoid discriminator options that mis-state the presence, and/or number, of anomeric carbons in a lactose molecule specifically.

Text
A/an {{c1::anomeric carbon}} is a carbon that, in the {{c2::acyclic}} form, is not a {{c2::stereocenter}}, but once it takes on the {{c2::cyclic}} form, it becomes a {{c2::stereocenter}}.
Extra

Photo Credit: Cisco79 (remixed), Public domain, via Wikimedia Commons

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#AK_MCAT_v2::#UWorld::403551 #AK_MCAT_v2::#UWorld::402756 #AK_MCAT_v2::#UWorld::402472
#AK_MCAT_v2::#Kaplan::Biochemistry::Ch-04-Carbohydrate-Structure-and-Function #AK_MCAT_v2::MileDown::Biochemistry::Carbohydrates #AK_MCAT_v2::#UWorld::404074 AnkiHub_ImageReady::Extra !AK_UpdateTags::^temporary::ImageFix_MCAT::04::done AnkiHub_Subdeck::AnKing-MCAT::Biochemistry AnkiHub_ImageReady::Text #AK_MCAT_v2::#KhanAcademy::Biochemistry::Biomolecules::Carbohydrates