Conventional cells, including ones used onboard the space shuttle and in some prototype automobiles, obtain the electrons for their electron flow by pulling them off of hydrogen atoms.
The amyloplast usually possessed a larger, very low electron density starch grain which mainly was long shuttle and there were some higher electron density partition or wedge structure in it.
它的基质很少，多含有呈长梭形的、电子密度非常低的淀粉粒，并有一些电子密度较高的条带结构。
3
Scanning electron microscope indicated that adherent cells showed shuttle shape or multiple Angle shape, and the multiple apophysis showed irregular shape.