Infectious Diseases and the Human Immune System Quiz

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Which term is used to describe an illness resulting from the presence and growth of pathogens in an individual host organism?

Pathogenic diseases

Transmissible diseases

Contagious diseases

Infectious disease (correct)

What are the three types of infectious agents?

Single-celled, prokaryotic, and eukaryotic

Bacterial, viral, and eukaryotic (correct)

Pathogenic, harmless, and beneficial

Contagious, transmissible, and pathogenic

Which shape is NOT a basic shape of bacteria?

Rod shaped (bacilli)

Spiral (spirochetes)

Gelatinous capsule (correct)

Spherical (cocci)

How do bacteria reproduce?

Binary fission Signup and view all the answers

What is the size of a virus?

0.01 µm Signup and view all the answers

How do viruses reproduce?

By hijacking the host cell's systems Signup and view all the answers

Which of the following is an example of a pathogenic virus that attacks the liver cells?

Hepatitis A virus Signup and view all the answers

Which of the following is NOT a mode of transmission for infectious agents?

Inhalation Signup and view all the answers

Which line of defense involves the production of antibodies to rid the body of antigens?

Third line of defense Signup and view all the answers

Which type of white blood cell is responsible for engulfing and digesting invasive organisms?

Macrophages Signup and view all the answers

Which type of lymphocyte matures in the bone marrow?

B lymphocytes Signup and view all the answers

Which type of lymphocyte recognizes and attacks host cells bearing antigens?

T lymphocytes Signup and view all the answers

Passive immunity is characterized by

Transfer of active immunity in the form of readymade antibodies Signup and view all the answers

What is an example of natural passive immunity?

Maternal transfer from mother to baby Signup and view all the answers

Active immunity is characterized by

Self-development through exposure to antigen and production of B and T cells Signup and view all the answers

What is an example of natural active immunity?

Primary immune response Signup and view all the answers

What is an example of artificial active immunity?

Influenza vaccine (attenuated or inactivated microbes) Signup and view all the answers

What is an example of an autoimmune disease?

Rheumatoid arthritis Signup and view all the answers

What causes an allergy?

Excessive activation of certain white blood cells called mast cells by Immunoglobulin E (IgE) Signup and view all the answers

How is Acquired Immune Deficiency Syndrome (AIDS) transmitted?

Contact with bodily fluids (semen, blood, vaginal fluids, and occasionally breast milk) Signup and view all the answers