Starch

• what is starch

  • glucose energy storage polysaccharides in PLANT cells
  • made up of thousands of a-glucose monomers
• name the 2 different molecules that make up starch

  • amylose
  • amylopectin
• describe amylose

  • function = glucose storage
  • chain type = coiled/helical
  • monomer = a-glucose
  • properties = insoluble + easily hydrolysed + compact
  • type of glycosidic bond = a(1-4)
• describe function of amylose

  • glucose storage
• describe function of amylopectin

  • glucose storage
• describe amylopectin

  • function = glucose storage
  • chain type = branches
  • monomer = a-glucose
  • properties = insoluble + easily hydrolysed + compact
  • type of glycosidic bond = a(1-4) + a(1-6)
• describe chain type of amylose

  • coiled/ helical
• describe chain type of amylopectin

  branches
• describe the type of monomer amylose is

  a-glucose
• describe the type of monomer amylopectin is

  a-glucose
• describe the properties of amylose

  • insoluble
  • easily hydrolysed
  • compact
• describe the properties of amylopectin

  • insoluble
  • compact
  • easily hydrolysed
• describe the type of glycosidic bond amylose has

  • a(1-4)
• describe the type of glycosidic bond amylopectin has

  • a(1-4)
  • a(1-6)
• what is glycogen

  • an animal glucose energy storage polysaccharide
• where is glycogen found in

  • liver + muscle cells
• what does glycogen being high branched allow it to do

  • quickly release lots of glucose from the ends of the branches
  • to be used in respiration