What is the function in starch grain in animal cell?

Starch grains in animal cells primarily serve as energy storage. When energy is needed, these grains can be broken down into glucose through enzymatic processes, providing a readily available source of fuel for cellular activities. Although starch is more commonly associated with plants, some animal cells, such as those in certain tissues, can store and utilize it. This stored energy is crucial during periods of high energy demand or when glucose supply is low.