antibodies

Question 1

what is an antigen

Answer 1

molecules that stimulate an immune response. usually proteins or glycoproteins in plasma membrane of pathogen. foreign antigen will be detected by the immune system and will stimulate the production of antibodies, specific to antigen.

Question 2

what is an antibody

Answer 2

immunoglobins; complex proteins produced by plasma cells in immune system. they released when infection is about. they are specific to antigens. one antibody for one antigen detected. they attach to antigens and make them harmless.

Question 3

state 3 ways in which antibodies work

Answer 3

opsonins
agglutinins
anti-toxin

Question 4

describe the three antibodies

Answer 4

opsonins - makes englufling of pathogen easier for phagocytes

agglutinins - antibodies that cause pathogens to stick together

anti-toxins - antibodies that make toxins harmless