Carbohydrates structure and function

View mindmap
  • Carbohydrates
    • Made of C, H and O
    • Disaccarides
      • Maltose
        • Glucose + glucose
      • Lactose
        • Glucose + galactose
      • Sucrose
        • Glucose + fructose
        • Transport in phloem of plaths
      • Glycosidic bond
      • Formed by condensation reaction
    • Polysaccarides
      • Starch
        • Amylose + amylopectin
          • 1-4 glycosidic bonds - linear
          • 1-6 glycosidic bonds - branched
          • Alpha glucose
        • Insoluble
          • Glycogen
            • Similar to amylopectin
            • Storage in animals
        • Compact
          • Glycogen
            • Similar to amylopectin
            • Storage in animals
        • Easily hydrolysed
          • Storage in plants
            • Potato tubers
            • In seeds
        • Cellulose
          • Beta glucose
          • Each adjacent molecule rotated by 180
          • OH groups on both sides of molecule
          • Cross-linkages between molecules
          • Microfibrils
          • Strong
          • Plant cell walls
        • Chitin
          • Same structure as cellulose (beta glucose rotated)
          • Amino acid groups added
          • Mucopolysaccharide
          • Wtaerproof
          • Lightweight
          • Strong
          • Exoskeleton of arthopods
          • Fungi cell walls
      • Monosaccarides
        • Monomers
        • Glucose
          • Alpha
          • Beta
        • Galactose
        • Fructose
        • Building blocks for larger molecules
        • Energy release in respiration
      • Tests
        • Benedicts teest for reducing sugars
          • Positive
            • Blue - green - yellow - orange - red
          • Negative - no colour change
          • Semi-quantitative
            • Degree of colour change shows relative degree of reducing sugar present
          • Add benedicts reagent and place in boiling water bath
        • For starch
          • Add iodine
          • Positive
            • Orange - blue/blakc
          • Negative - no colour change

    Comments

    No comments have yet been made

    Similar Biology resources:

    See all Biology resources »See all Biological molecules resources »