Glycogen is composed of a branched chain of glucose residues. It is primarily stored in the liver and muscles. It is an energy reserve for animals. It is the chief form of carbohydrate stored in animal organisms. It is insoluble in water. It turns brown-red when mixed with iodine. It also yields glucose on hydrolysis.
Glycogen Is COmPOsed OF A branChed chAIN oF glUcose residuEs. it is pRimArilY stOred IN tHE livEr AnD muscLes. iT is An EneRGy reSERvE foR AnImaLS. iT iS THE cHief foRm of CarbohYdrAte sTORed in aNimal orGanIsms. It is InsOLUble In water. IT TuRnS brOWN-reD when MIxEd With iodiNe. iT aLso Yields glucOse On hYDROlYsIs.