Immune System

Body System


The immune system is responsible for protecting the organisms from diseases.


Pathogen- A bacteria or virus that causes diseases or illness to its host.

Active immunity- Its the result that occurs from the production of antibodies.

Passive immunity- Results with the introduction of antibodies from another animal or person.

Antigen-A toxin that induces an immune response in the body.

Antibody- Blood protein produced in response to prevent a specific antigen.


Antibiotics are effective against bacteria but not against viruses because the bacteria is different to human cells and antibiotics block some metabolic pathways in the bacteria. Antibiotics with viruses would harm the virus and that would harm the human cell.


Lupus attacks body tissues like lungs, kidneys, and skin. Autoantibodies are found in the blood cause of lupus. The prevalence is 1,500,000 and signs and symptoms are dry eyes, chest pain, fatigue and fever, shortness of pain, and headaches. To treat lupus you would have to have surgery, take medications, or do a home treatment.