530564
Descripción
Test por gina_evans0312, actualizado hace más de 1 año
|
Creado por gina_evans0312
hace casi 11 años
|
|
Pregunta 1
Pregunta
What is MHC?
Respuesta
-
Presents antigens to T-cell on antigen presenting cells
-
Receives antigens from T-cells to antigen presenting cells
Pregunta 2
Pregunta
TCR's- T Cell Receptors that detect antigens presented by antigen presenting cells
Respuesta
- True
- False
Pregunta 3
Pregunta
Presentation of antigens through MCH/TCR activates the T-cell
Respuesta
- True
- False
Pregunta 4
Pregunta
How to Superantigens work?
Respuesta
-
Increase the presentation of antigens by MHC, super-stimulating the T-cells
-
Allows MHC/TCR binding without antigen present, super-stimulating the T-cells
-
Prevents T cell activation by destroying TCR's
Pregunta 5
Pregunta
Why are Superantigens dangerous
Respuesta
-
They prevent T-Cell activation
-
The over-activate T-Cells
-
Which causes T-Cells to over-release cytokins, causing shock like symptoms
Pregunta 6
Pregunta
Exotoxins are secreted during cell lysis
Respuesta
- True
- False
Pregunta 7
Pregunta
Which of the following are capable of producing Endotoxins?
Respuesta
-
Gram +ve
-
Gram -ve
Pregunta 8
Pregunta
What happens to exotoxins?
Respuesta
-
They're secreted during cell lysis
-
They secreted during normal cell function
-
They're expressed on the cell surface
Pregunta 9
Pregunta
Exotoxins tend to be produced by Gram +ve bacteria
Respuesta
- True
- False
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.