T lymphocytes and the cellular response Quiz
Studying this course? Keep your progress in one place.
Pick an answer for each. Quizzes never use energy.
5 questions, one answer each
Each answer is checked as you go, with why.
See all 5 questions
1. Which cell displays fragments of an engulfed pathogen on its surface?
- A. Plasma cell
- B. Antigen-presenting cell
- C. Red blood cell
- D. Cytotoxic T cell
2. What is released by helper T cells?
- A. Perforin
- B. Antibodies
- C. Cytokines
- D. Lysozymes
3. How do cytotoxic T cells kill infected cells?
- A. By engulfing them
- B. By releasing antibodies
- C. By digesting them with lysozyme
- D. By releasing perforin that makes holes in the membrane
4. Why is only a small proportion of helper T cells activated by a given antigen?
- A. Most are in the thymus
- B. The antigen destroys most of them
- C. Only those with complementary receptors bind the antigen
- D. Phagocytes remove them
5. A mouse without helper T cells cannot clear a virus. The main reason is:
- A. There are no macrophages
- B. The virus becomes a bacterium
- C. There is too much perforin
- D. Cytotoxic T cells and B cells are not stimulated