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Estructura de Carbohidratos

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Page 1: Clase Carbohidratos.ppt [Modo de compatibilidad] · Structures and Roles of Some polysaccharides Size (number Of monosaccharide units) 50-5,000 Up to up to 15,000 Very large Very

Estructura de Carbohidratos

Page 2: Clase Carbohidratos.ppt [Modo de compatibilidad] · Structures and Roles of Some polysaccharides Size (number Of monosaccharide units) 50-5,000 Up to up to 15,000 Very large Very

• Biomoléculas más abundantes• obtenidas por fotosíntesis• sacarosa y almidón componentes fundamentales de la dieta• oxidación de carbohidratos principal ruta de obtención de energía• polímeros insolubles: elementos estructurales de paredes celulares y tejidos animales• otros polímeros lubrican articulaciones y participan en el reconocimiento y adhesión entre las células• glicoconjugados: señales que determinan localización intracelular o destino metabólico

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ClasificaciónCompuestos de fórmula (CH2O)n:• Monosacáridos• Oligosacáridos• PolisacáridosAlgunos contienen además N, P o S

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Funciones• Fuente de energía• Estructural• Forman parte de nucleótidos• Interacciones entre células y otros elementos del entorno celular•Sitios de reconocimiento por otras moléculas

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Clasificación de los monosacáridos• Según el grupo funcional carbonilo:

• Aldosas• Cetosas

• Según el número de carbonos presente:• Triosas • Tetrosas• Pentosas• Hexosas• Heptosas

aldosas y cetosas

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