1A. Image of an amoeba shortly after transplant of a labeled nucleus (arrow). 1B. Autoradiograph image of the amoeba shown in 1A. Radioactivity appears in black, and is confined to the nucleus ...
cell membrane, which surrounds the cytoplasm, vacuole, the space within the cytoplasm which contains the fluids and nutrients, and a nucleus, which contains the cell's genetic material ...