Describe the additional nuclear detail that can be observed with an electron microscope.
Explain why structures within cells, including ribosomes and the rough and smooth endoplasmic reticulum, are not visible with a light microscope.
Fig. 4.1 shows a drawing of a transmission electron micrograph of a plasma cell.
Complete Table 4.1 by writing the letter for the event shown in Fig. 4.2 that matches the stage of the cell cycle listed. If a stage has no matching description, leave the space blank. Use each letter just once. One letter in Table 4.1 has already been filled in for you.
Clonal expansion also gives rise to memory B-lymphocytes. Explain why clonal expansion and the production of memory B-lymphocytes are important in protecting a person against an infectious disease.
Myasthenia gravis is an example of a disease in which the immune system cannot tell self from non-self. Explain what is meant by this statement.