“…The reaction is The structure of the alpha granules in the golden hamster is similar to the alpha granules described in other mammals (LACY, 1957;BENCOSME and PEASE, 1958;CARA-MIA et al, 1965;YOKOH et al, 1965;GALLI and GUIDOTTI-LOLLI, 1966;FUJITA and MATSUNO, 1967;FALLER, 1969 The presence of rather more numerous and larger mitochondria in the B cells, the richness of the ergastoplasmic reticulum and the well developed Golgi complex imply that the B cells are in higher metabolitic activities in comparison with the A cells. These findings could be related to the fact that the B cells are richer in enzymes in comparison with the A cells PETKOV, 1965, 1966;WEGMANN et al, 1967;PETKOV et al, 1968). The polymorphism of the beta granules in all probability is an expression of various phases in the process of the synthesis and secretion of insulin.…”