Remolinos de vida episode artwork

EPISODE · Oct 7, 2018 · 10 MIN

Remolinos de vida

from Cienciaes.com

Las moléculas quirales están compuestas por los mismos átomos, pero son imágenes especulares la una de la otra, a una se le denomina D (dextro, derecha) y, la otra, L (levo, izquierda). Los seres vivos utilizan solo una de las dos clases de moléculas quirales. Los azúcares suelen ser, con muy escasas excepciones, todos de la serie D, mientras que los aminoácidos que forman las proteínas son, también con muy escasas excepciones, de la clase L. ¿Por qué? Los remolinos en el agua también pueden girar a derecha o a izquierda y una de las ideas que justifica la preferencia por una de las moléculas quirales propone que éstas se agregaron al estar inmersas en flujos arremolinados de origen natural, como los que tienen lugar en los geiseres o fumarolas en el fondo oceánico. Ahora, un grupo de investigadores de la Academia de Ciencias China han ideado un experimento que parece apoyar esa hipótesis. Más información en http://cienciaEs.com

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Remolinos de vida

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This episode was published on October 7, 2018.

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Las moléculas quirales están compuestas por los mismos átomos, pero son imágenes especulares la una de la otra, a una se le denomina D (dextro, derecha) y, la otra, L (levo, izquierda). Los seres vivos utilizan solo una de las dos clases de...

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