A Biologist’s St. Patrick’s Day Song

A 200-year-old Irish classic! Lyrics: In the year of our lord eighteen hundred and eleven On March the seventeenth day I will raise up a beer and I’ll raise up a cheer For Saccharomyces cerevisiae Here’s to brewers yeast, that humblest of all beast Producing carbon gas reducing acetaldehyde But my friends that isn’t all -- it makes ethyl alcohol That is what the yeast excretes and that’s what we imbibe Anaerobic respiration* Also known as fermentation NADH oxidation Give me a beer [CHORUS] My intestinal wall absorbs that ethanol And soon it passes through my blood-brain barrier There’s a girl in the next seat who I didn’t think that sweet But after a few drinks I want to marry her I guess it’s not surprising, my dopamine is rising And my glutamate receptors are all shot I’d surely be bemoaning all the extra serotonin But my judgement is impaired and my confidence is not Allosteric modul