530564
Descrição
Quiz por gina_evans0312, atualizado more than 1 year ago
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Criado por gina_evans0312
quase 11 anos atrás
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Questão 1
Questão
What is MHC?
Responda
-
Presents antigens to T-cell on antigen presenting cells
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Receives antigens from T-cells to antigen presenting cells
Questão 2
Questão
TCR's- T Cell Receptors that detect antigens presented by antigen presenting cells
Responda
- True
- False
Questão 3
Questão
Presentation of antigens through MCH/TCR activates the T-cell
Responda
- True
- False
Questão 4
Questão
How to Superantigens work?
Responda
-
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
Questão 5
Questão
Why are Superantigens dangerous
Responda
-
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
Questão 6
Questão
Exotoxins are secreted during cell lysis
Responda
- True
- False
Questão 7
Questão
Which of the following are capable of producing Endotoxins?
Responda
-
Gram +ve
-
Gram -ve
Questão 8
Questão
What happens to exotoxins?
Responda
-
They're secreted during cell lysis
-
They secreted during normal cell function
-
They're expressed on the cell surface
Questão 9
Questão
Exotoxins tend to be produced by Gram +ve bacteria
Responda
- True
- False
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