Ribosomes Cisternal 7.2.2内质 space Cystolic space 网的功能 A.粗面内质网是 蛋白质合成的场 所 LSCM photo 03 5阿 Figure 8.7 The rough endoplasmic reticulum (RER).(a) dent.()micrograph of the RER ina pan showing the stacks of flattened cistemae creatic acinar cell.(d)Visualization of the ER in a whole cul hat make up the rough ER.The cytosolic surface of the tured cell by laser scanning confocal microscopy.The ER econtains bound ribosomes,which gives the cis- (orange and white coloring)is concentrated in the region mae their rough appearance.(b)Transmission electron surrounding the nucleus (N).(b:Courtesy of S.Ito:c:from K. micrograph of a portion of the rough ER of a pancreatic aci 胰腺细胞的粗面内质网 ell.The division of the RER into a cisternal space aC大 which is devoid of ribosomes)and a cytosolic space is evi- the Company of Biologists Ltd.) A. 粗面内质网是 蛋白质合成的场 所 胰腺细胞的粗面内质网 TEM photo SEM photo LSCM photo 7.2.2 内质 网的功能