How do plants defy gravity to "drink" water?

#209 Melissa and Jam dive into the fascinating chemistry behind how plants transport water from their roots to their leaves, effectively defying gravity. They explore processes such as capillary action and the cohesion tension mechanism, citing a primary source from Nature journal. Melissa and Jam also touch on key chemistry concepts like water polarity, hydrogen bonding, and osmosis, providing examples from everyday life. Jam shares a personal story about germinating an apple seed with his son, while Melissa discusses her adventures in native plant gardening. The episode concludes with a shoutout to their Patreon supporters and details on upcoming Chemistry for Your Life merch. ★ Support this podcast on Patreon ★ ★ Buy Podcast Merch and Apparel ★ Check out our website at chemforyourlife.com Watch our episodes on YouTube Find us on Instagram, Twitter, and Facebook @ChemForYourLife 00:00 Introduction and Tea Talk 00:17 Plants Defying Gravity 01:05 Welcome to Chemistry for Your Life 01:20 Listener Question: Chemistry of Pregnancy Tests 02:11 Capillary Action in Everyday Life 03:57 Personal Stories and Plant Enthusiasm 05:15 Chemistry Lessons: Water Polarity and Hydrogen Bonds 10:32 Water Transport in Plants: Xylem and Capillary Action 16:00 Transpiration and Water Loss in Plants 23:32 Curiosity About Soil and Water Content 24:23 Water Movement in Trees 26:53 Understanding Osmosis 28:37 Practical Applications of Osmosis 31:12 Capillary Action and Plant Water Transport 33:15 Fun Plant Stories and Experiments 41:11 Supporting the Show and Community References from this episode: https://www.sciencedirect.com/science/article/pii/S0890856711009531 https://www.gao.gov/assets/hrd-82-3.pdf https://pubmed-ncbi-nlm-nih-gov.libproxy.library.unt.edu/23026007/ https://www.fda.gov/food/hfp-constituent-updates/fda-revoke-authorization-use-red-no-3-food-and-ingested-drugs https://cen.acs.org/food/food-ingredients/FDA-bans-red3-food-drugs/103/web/2025/01 https://www.acs.org/education/chemmatters/past-issues/2015-2016/october-2015/articial-dyes.html https://cen.acs.org/food/food-ingredients/Editorial-Fewer-risky-food-colors/102/i26 https://pmc.ncbi.nlm.nih.gov/articles/PMC10502305/ Thanks to our monthly supporters Vince W Julie S. Heather R Autoclave Chelsea M Dorien VD Scott B Jessie R Ciara L J0HNTR0Y Jeannette N Cullyn R Erica B Elizabeth P Sarah M Rachel R Letila Katrina B Suzanne P Venus R Lyn S Jacob T Brian K Emerson W Kristina G Timothy P Steven B Chris and Claire S Chelsea B Avishai B Hunter R ★ Support this podcast on Patreon ★ ★ Buy Podcast Merch and Apparel ★ Check out our website at chemforyourlife.com Watch our episodes on YouTube Find us on Instagram, Twitter, and Facebook @ChemForYourLife Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

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