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WorksheetsImmunology Quiz
Total questions: 15
Worksheet time: 8mins
What are antibodies primarily composed of?
Nucleic acids
Globulin proteins
Lipids
Carbohydrates
Which class of antibody is most abundant in blood plasma?
IgA
IgM
IgG
IgE
What is the primary function of C3b in the complement system?
To induce fever
To opsonize bacteria
To activate B cells
To produce antibodies
Which pathway of complement activation bypasses the antibody requirement?
C3b pathway
Alternative pathway
Classic pathway
Lectin pathway
What type of hypersensitivity is mediated by IgE?
Type I
Type II
Type III
Type IV
Which of the following is a clinical manifestation of Type II hypersensitivity?
Asthma
Hemolytic anemia
Erythema multiforme
Rheumatoid arthritis
What is the role of C5a in the complement system?
Opsonization
Chemotaxis
Cytolysis
Antibody production
Which type of hypersensitivity involves immune complexes?
Type II
Type IV
Type III
Type I
What is the main function of the membrane attack complex?
To cause cytolysis
To neutralize toxins
To enhance antibody production
To attract neutrophils
Which of the following is NOT a function of antibodies?
Activating complement
Producing cytokines
Opsonizing microbes
Neutralizing toxins
What initiates the classic pathway of complement activation?
C3(H2O) and factor B
Mannan-binding lectin
Bacterial lipopolysaccharides
Antigen-antibody complexes
Which type of hypersensitivity is characterized by delayed response?
Type I
Type III
Type II
Type IV
What is the primary role of anaphylatoxins?
To enhance phagocytosis
To cause degranulation of mast cells
To activate B cells
To lyse bacteria
Which of the following is a characteristic of Type IV hypersensitivity?
Mediated by IgE
Involves complement activation
Mediated by T lymphocytes
Immediate response
What is the main source of complement proteins?
Liver
Bone marrow
Spleen
Lymph nodes
