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Cartes-fiches 241 Cartes-fiches
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Langue English
Niveau Université
Crée / Actualisé 23.06.2020 / 31.12.2020
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During immune complex binding complement protein C1q attaches to

constant region Fc of an Ab

fab region of an Ab

hypervariable region of an Ab

light chain region of an Ab

framework region of an Ab

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The regulatory T lymphocytes function can e characterized with the following statement

Tregs may inhibit autoreactive lymphocytes

Tregs may inhibit hypersensitivity reactions

Tregs may be responsible for developing tolerance to tumor antigens

Tregs play a role in the food tolerance development

All are correct

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Mark incorrect answer

specificity means the ability of immune system ro react on various antigens in a different way

passive adoptive immunity do not lead to memory development

T-naive cells are cells that have never men antigent on the periphery they are specific for

clonal expansion of lymphocytes means its intensive apoptosis

plasmatic cells are crucial for humoral immunity

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Clonal deletion of lymphocytes during peripheral tolerance development means

Apoptosis of alloreactive naive T-cells

Apoptosis of mature autoreactive lymphocytes

Apoptosis of myeloid cell progenitors

V and J gene rearrangement in TCR

Cell activation by co-stimulatory signal

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IgA Antibody directed against outer membrane protein (OmpA-1) may be recognized

 

Specifically by FcR

Nonspecifically by FcR

Nonspecifically by OmpA-1 protein

Specifically by PAMP

By none of the above mentioned

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Naive lymphocytes needs direct interaction with antigen presenting cell to be activated. So-called first signal of activation comes from

Recognition of an antigen via MHCII molecules

Recognition of an antigen via MHCI molecules

Recognition of an antigen vi TCR or BCR

Activated CTLA-4 molecule on lymphocytes

Activated CD80/CD86 molecules on APC

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CD80/CD86 surface molecules on antigen presenting cells are needed for

Specific antigen recognition

Specific activation of TCR on T-cells

Co-stimulation necessary for T-cell activation

For development of so-called 1st signal for T-cell activation

For development of so-called 2nd signal for APC

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The T-cell that encounters an antigen for which it has a specific receptor may finally

Be activated into an effector cell

Be activated into a memory cell

Be activated and/or undergo apoptosis

Ignore the presence of the antigen

All answers are correct