530564
Description
Quiz by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312
almost 11 years ago
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Question 1
Question
What is MHC?
Answer
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Presents antigens to T-cell on antigen presenting cells
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Receives antigens from T-cells to antigen presenting cells
Question 2
Question
TCR's- T Cell Receptors that detect antigens presented by antigen presenting cells
Answer
- True
- False
Question 3
Question
Presentation of antigens through MCH/TCR activates the T-cell
Answer
- True
- False
Question 4
Question
How to Superantigens work?
Answer
-
Increase the presentation of antigens by MHC, super-stimulating the T-cells
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Allows MHC/TCR binding without antigen present, super-stimulating the T-cells
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Prevents T cell activation by destroying TCR's
Question 5
Question
Why are Superantigens dangerous
Answer
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They prevent T-Cell activation
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The over-activate T-Cells
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Which causes T-Cells to over-release cytokins, causing shock like symptoms
Question 6
Question
Exotoxins are secreted during cell lysis
Answer
- True
- False
Question 7
Question
Which of the following are capable of producing Endotoxins?
Answer
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Gram +ve
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Gram -ve
Question 8
Question
What happens to exotoxins?
Answer
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They're secreted during cell lysis
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They secreted during normal cell function
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They're expressed on the cell surface
Question 9
Question
Exotoxins tend to be produced by Gram +ve bacteria
Answer
- True
- False
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