Communicable diseases Flashcards
Outline the action of opsonins
Increase the likelihood of phagocytosis
What type of bond is found in the antibody chains?
Disulfide bonds - to hold the polypeptides
What is meant by autoimmune disease?
Abnormal immune response against tissues normally in the body
Suggest why antibodies specific to nuclear protiens are not normally made.
Nuclear protiens normally are hidden in the nucleus.
Two possible sources of natural substances to help develop specific new medicines
Plants Organisms
What type of immunity is injecting antibodies into a person?
Artificial Passive Immunity
What feature of a pathogen could be altered by a mutation making a vaccine ineffective.
Shape of glycoproteins
Outline the processes that lead to the production of antibodies against an unfamiliar bacteria
-B cells have an antigen receptor on the surface that is complimentary to one antigen.
- Selected B cells divide by mitosis that differentiate into plasma cells
Explain how helper T cells act to speed up these processes.
Helper T cells stimulated by antigen presenting cells releases cytokines.
Explain why vaccinations are an example of active immunity
Antibodies are produced by a person being vaccinated memory cells remain in the person.
What is the name of the pathogen that produces malaria
Plasmodium
Explain why malaria parasite is able to bypass the body’s primary defences.
Mosquitos mouth pierces the skin and the pathogen is injected directly into the blood
