Lesson 6.4.2
6.4.2 B cells and T cells Quiz: Pearson Edexcel Biology, Unit 6
20 questions
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Lesson 6.4.2, B cells and T cells: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 6: Immunity, Infection and Forensics, written with Revision Ninja.
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The 20 questions
-
In which human organ or tissue do B lymphocytes mature?
- Spleen
- Thymus
- Bone marrow
- Lymph node
-
Where in the human body do T lymphocytes undergo maturation?
- Thymus
- Thyroid
- Bone marrow
- Spleen
-
Which surface protein marker is present on helper T cells?
- MHC II
- MHC I
- CD4
- CD8
-
Killer T cells recognise antigens presented on which molecules on host cells?
- MHC class I
- MHC class II
- Antibodies
- CD4 receptors
-
Which protein released by killer T cells forms pores in infected cell membranes?
- Perforin
- Interferon
- Cytokine
- Histamine
-
Which type of cell differentiates directly into antibody-secreting plasma cells?
- Phagocytes
- B effector cells
- Killer T cells
- Helper T cells
-
Which type of cell remains in the body to provide secondary immunity?
- Helper T cells
- Phagocytes
- Memory cells
- Plasma cells
-
What process selects a specific lymphocyte with receptors complementary to an antigen?
- Clonal expansion
- Agglutination
- Opsonisation
- Clonal selection
-
Which molecules do helper T cells release to stimulate killer T cell division?
- Antibodies
- Perforins
- Cytokines
- Antigens
-
Why is the secondary immune response faster and stronger than the primary response?
- Phagocytes multiply
- More antigens enter
- Memory cells persist
- Antibodies persist
-
Which type of cell secretes antibodies as part of the adaptive immune response?
- Helper T cells
- Killer T cells
- Macrophages
- B cells
-
Which immune process is severely impaired by a deficiency of helper T cells?
- B cell activation
- Phagocytosis speed
- Lactate production
- Histamine release
-
Which cell type is essential for fully activating B cells during an infection?
- Helper T cells
- Plasma cells
- Mast cells
- Killer T cells
-
What is the rapid division of an activated T cell into identical cells called?
- Clonal selection
- Specialisation
- Clonal expansion
- Differentiation
-
Which cells are the primary effectors of cell-mediated immunity?
- Neutrophils
- Killer T cells
- B cells
- Plasma cells
-
A B cell divides every 6 hours. How many cells result from one cell after 24 hours?
- 16
- 32
- 8
- 12
-
Which chemical signal released by helper T cells stimulates lymphocyte proliferation?
- Cytokines
- Perforins
- Antibodies
- Histamines
-
What process follows the binding of an activated B cell to its specific antigen?
- Phagocytosis
- Agglutination
- Clonal expansion
- Neutralisation
-
Which cells produce a rapid secondary immune response upon re-exposure to a pathogen?
- Mast cells
- Memory cells
- Phagocytes
- Plasma cells
-
Why might a memory cell-based vaccine fail to protect against a mutating pathogen?
- Antigenic variation
- Alternative splicing
- Active transport
- Clonal expansion
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