762167
Beschreibung
Quiz von gina_evans0312, aktualisiert more than 1 year ago
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Erstellt von gina_evans0312
vor mehr als 10 Jahre
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Frage 1
Frage
Th cells are activated by MHCII and a co-stimulation signal
Antworten
- True
- False
Frage 2
Frage
CD4 T-cells are a major source of cytokines after activation
Antworten
- True
- False
Frage 3
Frage
Which of the following is a major autokrine stimulator for clonal proliferation of Th cells?
Antworten
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IL2
-
IL3
-
IL4
Frage 4
Frage
Which of the following is not a factor in CD4 cell polarisation?
Antworten
-
Infection type (I.e. does the microenvironment indicate a fungus, a virus?)
-
Amount of antigen/binding strength of antigen
-
'Dose' of infection
Frage 5
Frage
Production of cytokines by one type of Th cell, causes the polaristion of native Th cells to the type that produced the cytokines (i.e. Th1 produced cytokines encourage Th1 conversion)
Antworten
- True
- False
Frage 6
Frage
During non-infection, which cell is predominant?
Antworten
-
Th1
-
Th2
-
Neither, till infection tips the balance
Frage 7
Frage
Name ways in which the activity of cytokines can be controlled
Antworten
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Short half life- only effect nearby cells
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Specific receptors prevent unwanted signalling
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High concentrations needed for cell activation
-
Active destruction by incorrect cells
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