To start using Tab for a Cause, go to: tabforacause.org/r/minuteearth2 The pigments in our food all get destroyed on their way through our digestive system...so where do the colors of our poop and pee come from? Thanks also to our supporters on www.patreon.com/MinuteEarth ___________________________________________ FYI: We try to leave jargon out of our videos, but if you want to learn more about this topic, here are some keywords to get your googling started: - Red blood cells (RBCs), also called erythrocytes, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen - Hemoglobin also spelled haemoglobin and abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates as well as the tissues of some invertebrates. - Bilirubin is a yellow compound that occurs in the normal catabolic pathway that breaks down heme in vertebrates. - Urobilinogen is a colourless by-product of bilirubin reduction. It is formed in the intestines by bacterial action on bilirubin. About half of the urobilinogen formed is reabsorbed and taken up via the portal vein to the liver, enters circulation and is excreted by the kidney. - Urobilin or urochrome is the chemical primarily responsible for the yellow color of urine. - Stercobilin is the chemical responsible for the brown color of human feces" __________________________________________ Credits (and Twitter handles): Script Writer: Will Tauxe Script Editor: Emily Elert (@eelert) Video Illustrator: Ever Salazar (@eversalazar) Video Director: Emily Elert (@eelert) Video Narrator: Emily Elert (@eelert) With Contributions From: Henry Reich, Alex Reich, Kate Yoshida, Peter Reich, David Goldenberg Music by: Nathaniel Schroeder: www.soundcloud.com/drschroeder _________________________________________ Like our videos? Subscribe to MinuteEarth on YouTube: goo.gl/EpIDGd Support us on Patreon: goo.gl/ZVgLQZ Also, say hello on: Facebook: goo.gl/FpAvo6 Twitter: goo.gl/Y1aWVC And find us on itunes: goo.gl/sfwS6n ___________________________________________

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