Specific immune response Quiz
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5 questions, one answer each
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1. Which cell secretes antibodies?
- A. Memory T cell
- B. T helper cell
- C. Macrophage
- D. Plasma cell
2. What is the role of T helper cells?
- A. They release cytokines that stimulate B cells and killer T cells
- B. They engulf pathogens
- C. They secrete antibodies
- D. They present antigens to macrophages
3. Why does a second exposure to an antigen produce a faster response?
- A. Antibodies from the first infection remain in the blood
- B. Memory cells divide and differentiate rapidly into effector cells
- C. Macrophages remember the antigen
- D. The antigen changes shape
4. What happens when a killer T cell binds to an infected cell?
- A. It engulfs the cell by phagocytosis
- B. It releases histamine
- C. It secretes antibody
- D. It releases perforin and the infected cell dies
5. A macrophage digests a bacterium and then displays fragments on its surface. What is the function of this?
- A. To kill neighbouring cells
- B. To activate T helper cells with complementary receptors
- C. To release antibodies directly
- D. To make the antigens harmless