Lesson 4.1.1c
4.1.1c Specific immune response and immunity Quiz: OCR Biology, Unit 3
20 questions
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Lesson 4.1.1c, Specific immune response and immunity: 20 multiple choice questions for the OCR Biology (H020), Unit 3: Communicable diseases, disease prevention and the immune system, written with Revision Ninja.
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The 20 questions
-
Which type of lymphocyte matures in the thymus gland?
- T lymphocytes
- Plasma cells
- B lymphocytes
- Neutrophils
-
Which cells are derived from B lymphocytes and secrete large amounts of antibody?
- Phagocytes
- T killer cells
- T helper cells
- Plasma cells
-
Which cell-signalling molecules are released by T helper cells to activate B cells?
- Antibodies
- Interleukins
- Opsonins
- Histamines
-
What is the process where a specific antigen binds to a matching lymphocyte receptor?
- Agglutination
- Clonal expansion
- Opsonisation
- Clonal selection
-
What is the rapid mitotic division of a selected lymphocyte clone called?
- Neutralisation
- Clonal expansion
- Clonal selection
- Phagocytosis
-
How many polypeptide chains make up a typical antibody molecule?
- Three
- Six
- Four
- Two
-
What type of disease occurs when the immune system attacks self-antigens?
- Genetic disease
- Deficiency disease
- Autoimmune disease
- Infectious disease
-
What is the primary function of opsonins in the immune response?
- Enhancing phagocytosis
- Neutralising toxins
- Producing memory cells
- Dividing by mitosis
-
Which type of immunity is gained through an injection of pre-formed antibodies?
- Artificial active immunity
- Natural passive immunity
- Artificial passive immunity
- Natural active immunity
-
Which term describes cells that display pathogen antigens on their surface to T cells?
- Cytotoxic T cells
- Antigen-presenting cells
- Memory B cells
- Plasma cells
-
Why is the secondary immune response faster and larger than the primary response?
- Higher antibody concentration
- Faster histamine release
- Memory cells present
- More phagocytes present
-
Which feature of an antibody response graph characterises a secondary immune response?
- Longer lag phase
- Steeper, higher peak
- Slower, lower peak
- Delayed antibody production
-
Which process directly follows antigen presentation during a specific primary immune response?
- Plasma cell division
- T helper activation
- Opsonin production
- Phagosome formation
-
Which part of an antibody structure determines its specificity for a single antigen?
- Disulfide bridge
- Hinge region
- Constant region
- Variable region
-
Which type of lymphocyte directly destroys virus-infected host cells?
- T helper cell
- T memory cell
- B plasma cell
- T killer cell
-
What causes the immune system to attack host tissues in autoimmune diseases?
- Missing memory cells
- Loss of self-tolerance
- Excess histamine release
- Reduced opsonin production
-
What main effect does a lack of T helper cells have on B lymphocytes?
- Increased apoptosis
- Increased antibody release
- Reduced clonal expansion
- Enhanced phagocytosis
-
Why does passive immunity fail to provide long-term protection against a pathogen?
- Inhibited T cells
- Instant antigen mutation
- No memory cells
- Rapid antibody destruction
-
What is the primary function of agglutinins during an immune response?
- Coating pathogen surfaces
- Clumping pathogens together
- Neutralising bacterial toxins
- Punching membrane holes
-
What functional group of molecules do interleukins belong to in immunity?
- Cell-signalling proteins
- Phagocytic receptors
- Hydrolytic enzymes
- Membrane-bound antibodies
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