20 Questions
Which term is used to describe an illness resulting from the presence and growth of pathogens in an individual host organism?
Infectious disease
What are the three types of infectious agents?
Bacterial, viral, and eukaryotic
Which shape is NOT a basic shape of bacteria?
Gelatinous capsule
How do bacteria reproduce?
Binary fission
What is the size of a virus?
0.01 µm
How do viruses reproduce?
By hijacking the host cell's systems
Which of the following is an example of a pathogenic virus that attacks the liver cells?
Hepatitis A virus
Which of the following is NOT a mode of transmission for infectious agents?
Inhalation
Which line of defense involves the production of antibodies to rid the body of antigens?
Third line of defense
Which type of white blood cell is responsible for engulfing and digesting invasive organisms?
Macrophages
Which type of lymphocyte matures in the bone marrow?
B lymphocytes
Which type of lymphocyte recognizes and attacks host cells bearing antigens?
T lymphocytes
Passive immunity is characterized by
Transfer of active immunity in the form of readymade antibodies
What is an example of natural passive immunity?
Maternal transfer from mother to baby
Active immunity is characterized by
Self-development through exposure to antigen and production of B and T cells
What is an example of natural active immunity?
Primary immune response
What is an example of artificial active immunity?
Influenza vaccine (attenuated or inactivated microbes)
What is an example of an autoimmune disease?
Rheumatoid arthritis
What causes an allergy?
Excessive activation of certain white blood cells called mast cells by Immunoglobulin E (IgE)
How is Acquired Immune Deficiency Syndrome (AIDS) transmitted?
Contact with bodily fluids (semen, blood, vaginal fluids, and occasionally breast milk)
Test your knowledge on infectious diseases and the human immune system with this quiz. Learn about the different types of pathogens, including bacteria, viruses, and eukaryotes, and their role in causing illness. Explore the synonyms for infectious diseases and deepen your understanding of this important topic.
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