Describe how B-lymphocytes respond when they are stimulated by antigens.

When B-lymphocytes are stimulated by antigens, they first divide by mitosis to form clones, some of which become plasma cells that secrete antibodies, others become memory B-cells which can be stimulated at a later date to differentiate into plasma cells

Related Biology A Level answers

All answers ▸

State 3 organelles found in a Eukaryotic cell and the functions of each organelle.


Describe the function of enzymes DNA helicase and DNA polymerase during DNA replication (2 marks)


Explain the functional differences between a t-RNA and an m-RNA molecule


Name two ways in which meiosis produces genetic variation.