Author Question: Compare self and non-self and explain their relationship with the body's immune system. What will ... (Read 55 times)

moongchi

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Compare self and non-self and explain their relationship with the body's immune system.
 
  What will be an ideal response?

Question 2

How are the various types of T cells different? Explain how each assists the body's immune system.
 
  What will be an ideal response?



Chou

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Answer to Question 1

Answer: The key to the body's successful immune system is the ability to distinguish self (or proteins that belong to its body) from non-self (proteins that belong to any other living thing).

Answer to Question 2

Answer: Cytotoxic T cells directly kill virus-infected cells and tumor cells. Helper T cells secrete proteins that promote inflammation by calling for the microphages to the site, stimulating B cells, and activating the cytotoxic T cells. Regulatory T cells help lower the immune response once the infection is under control. Memory T cells remember an antigen and therefore can produce new fighting cells rapidly.



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Chou

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