biol+3+immune+response+questions

Here are the all important questions you came up with on the immune response. I have to say that I think you have come up with an impressive range of questions. You can download all the questions.[|student questions on the immune response.doc] But I would like each of you to post answers to a couple of them below. I have had to create another page to fit all the questions. Link to biol 3 immune response questions2

Q1. What is the major component of the immune system? A. Endocrine B. Lymphatic C. Nervous D. Inflammatory Answer: Q2. The small proteins that inhibit the production of viruses are A. Cytokenisis B. Cytotoxins C. Cytokines D. Cytosol Answer: Q3. Which of these is not correct about phagocytes? A. They engulf invading pathogens. B. They move to the site of infection. C. They are white blood cells. D. They release histamine in response to bacterial infection. Answer: Q4. The presence of foreign substances initiates the production of A. Phagocytic cells by T-cells B. Antibodies by mast cells C. Pus by B cells D. Antibodies by plasma cells Answer: Q5. Fill in the gaps Answers: Q6. How does primary response differ from secondary response? A: Q7. Name the two types of responses in the 3rd line of defence. A: Q8. Describe the difference between the 1st line and 2nd line of defence. A: Q9. Briefly describe the two parts of the specific immune response. A: Q10. Give an example of natural active and artificial passive immunity. A: Q11. How does histamine assist in the repairing of a wound? A: Q12. What are the three things that helper T-cells do when activated by an APC? A: 1. release chemicals which attract phagocytes. 2. stimulate cell division in B lymphocytes. 3. produce chemicals which stimulate other T cells. Q13. Name two defence mechanisms of plants. A: passive - waxy layer. active - galls. Q14. When B-cells’ surface receptor bind with an antigen, a type of cell is needed to stimulate replication of the B-cell. What type of cell is this? A: Q15a. Name the theory that describes the replication and differentiation of B-cells. A: Q15b. Describe the features of this theory. A: Q16. What is the usefulness of an immunoglobulin binding to toxins? Is this a humoral or cell-mediated response? A: Q17. Use examples to explain the difference between natural and artificial passive immunity. A: Q18. Name and describe the initial response to an open wound in plant tissue. A: Q19. Explain how cell-mediated immunity fights against an infected cell. A: Q20. Summarise the process that occurs when a white blood cell (macrophage) engulfs a foreign substance. A: