Question

Transit-amplifying cells migrate from these structures to replenish the villus epithelium. For 10 points each:
[10h] Name these populations of intestinal stem cells. LGR5+ cells located at these pitted structures can also differentiate in +4 cells and Paneth cells.
ANSWER: intestinal crypts [or colonic crypts; accept crypts of Lieberkühn; prompt on intestinal glands; prompt on stem-cell niches]
[10m] After migrating from the crypt, transit-amplifying cells will mature into one of four cell types, including this cell type involved in lubricating the epithelium. Most of the mucin (“MEW-sin”) found in the human body is produced by these cells.
ANSWER: goblet cells
[10e] Transit-amplifying cells can also differentiate into cells called enterocytes (“EN-tair-roe-SITES”) that facilitate this molecule’s uptake using a sodium cotransporter. This molecule is converted into pyruvate during glycolysis.
ANSWER: glucose [accept sodium-glucose transporter; prompt on sugars or saccharides; prompt on carbohydrates]
<Kane Nguyen, Biology>

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Summary

2024 Penn Bowl UNC10/26/2024Y316.67100%33%33%
2024 Penn Bowl Berkeley11/02/2024N210.00100%0%0%
2024 Penn Bowl CWRU11/02/2024N220.00100%100%0%
2024 Penn Bowl Chicago11/02/2024N316.67100%67%0%
2024 Penn Bowl Mainsite11/02/2024N320.00100%67%33%
2024 Penn Bowl Texas11/02/2024N120.00100%100%0%

Data

RIT AUNC A001010
Duke AUNC B10101030
Virginia Tech AUNC C001010