Immune System
Biology ⇒ Human Biology
Immune System starts at 8 and continues till grade 12.
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See sample questions for grade 11
A patient is given an injection of antibodies after being bitten by a venomous snake. What type of immunity is this an example of?
A person who lacks the enzyme adenosine deaminase (ADA) suffers from severe combined immunodeficiency (SCID). Explain why this condition is life-threatening.
Describe the main difference between humoral and cell-mediated immunity.
Describe the role of cytokines in the immune system.
Describe the role of the spleen in the immune system.
Explain how vaccination leads to immunity.
A patient is given an injection of antibodies after being bitten by a venomous snake. What type of immunity is this an example of?
A person who lacks the enzyme adenosine deaminase (ADA) suffers from severe combined immunodeficiency (SCID). Explain why this condition is life-threatening.
Which of the following best describes an autoimmune disease?
(1) The immune system fails to respond to pathogens
(2) The immune system attacks the body’s own cells
(3) The immune system is weakened by infection
(4) The immune system overproduces antibodies to all antigens
Which of the following best describes the difference between innate and adaptive immunity?
(1) Innate immunity is specific, adaptive is non-specific
(2) Innate immunity is present from birth, adaptive develops after exposure
(3) Adaptive immunity acts immediately, innate takes days to respond
(4) Adaptive immunity only occurs in plants
Which of the following best describes the function of helper T cells?
(1) Directly kill infected cells
(2) Suppress immune responses
(3) Activate B cells and other immune cells
(4) Produce antibodies
Which of the following best describes the function of natural killer (NK) cells?
(1) Produce antibodies
(2) Engulf pathogens
(3) Destroy virus-infected and cancerous cells
(4) Present antigens to T cells
Fill in the blank: The enzyme found in tears and saliva that destroys bacterial cell walls is called __________.
Fill in the blank: The fluid that circulates in the lymphatic system is called __________.
Fill in the blank: The process by which B cells change the type of antibody they produce is called __________.
Fill in the blank: The process by which immune cells leave the bloodstream and enter tissues at the site of infection is called __________.
True or False: All white blood cells are involved in immune responses.
True or False: Allergies are caused by an overreaction of the immune system to harmless substances.
True or False: Antibodies are proteins that specifically bind to antigens.
True or False: Fever is a defense mechanism that can help inhibit the growth of some pathogens.
