How to Superantigens work?

Allows MHC/TCR binding without antigen present, super-stimulating the T-cells

Increase the presentation of antigens by MHC, super-stimulating the T-cells

Prevents T cell activation by destroying TCR's

Why are Superantigens dangerous

Which causes T-Cells to over-release cytokins, causing shock like symptoms

They secreted during normal cell function

They're secreted during cell lysis

They're expressed on the cell surface

Quiz

gina_evans0312 9 Fragen

Quiz starten

1What is MHC?
1. APresents antigens to T-cell on antigen presenting cells
2. BReceives antigens from T-cells to antigen presenting cells
2TCR's- T Cell Receptors that detect antigens presented by antigen presenting cells
1. ARichtig
2. BFalsch
3Presentation of antigens through MCH/TCR activates the T-cell
1. ARichtig
2. BFalsch
4How to Superantigens work?
1. AIncrease the presentation of antigens by MHC, super-stimulating the T-cells
2. BAllows MHC/TCR binding without antigen present, super-stimulating the T-cells
3. CPrevents T cell activation by destroying TCR's
5Why are Superantigens dangerous
1. AThey prevent T-Cell activation
2. BThe over-activate T-Cells
3. CWhich causes T-Cells to over-release cytokins, causing shock like symptoms
6Exotoxins are secreted during cell lysis
1. ARichtig
2. BFalsch
7Which of the following are capable of producing Endotoxins?
1. AGram +ve
2. BGram -ve
8What happens to exotoxins?
1. AThey're secreted during cell lysis
2. BThey secreted during normal cell function
3. CThey're expressed on the cell surface
9Exotoxins tend to be produced by Gram +ve bacteria
1. ARichtig
2. BFalsch

Beschreibung: Medical Microbiology (Skin Infections) Quiz am Super-Antigens & Toxins, erstellt von gina_evans0312 am 06/02/2014.
Autor: gina_evans0312
Sprache: English
Aufrufe: 450
Schlagwörter: basics medical microbiology medical microbiology skin infections
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