HUMORAL RESPONSE

Question 1

where do b lymphocytes mature

Answer 1

bone marrow

Question 2

what are memory cells

Answer 2

circulate blood
immunological memory
present after immune response
speeds up response to secondary infection by same pathogen

Question 3

describe the b cell response

Answer 3

1. Specific T & B lymphocytes (with
   the correct receptors) detect
   foreign antigens.
2. Presentation of foreign antigens by
   cells increase, initiating an immune
   response (proliferation).

Question 4

where do antigens detected by t and b cells come from

Answer 4

.Cells invaded by pathogens have
foreign antigens
. Macrophages become antigen
presenting cells
. Cells from transplanted tissues have
foreign antigens
.Cancer cells have foreign antigens

Question 5

what signals b cells

Answer 5

t helper cells specific to the antigen

Question 6

what do b cells develop into

Answer 6

plasma cells - produce and release antibodies into blood (primary immune response)
memory b cells - remain in blood for years (secondary immune response)

Question 7

what is clonal selection

Answer 7

when a b cell comes across its specific antigen it undergoes mitosis