lecture 11 true and false quiz- immunology
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Questions and Answers

Activation signals for T cells are transmitted through the BCR complex.

False

CD4 and CD8 are examples of coreceptors involved in T cell activation signals.

True

CD19 and CD21 are examples of coreceptors involved in B cell activation signals.

True

The signaling events initiated by BCR binding lead to T cell proliferation.

<p>False</p> Signup and view all the answers

The maturation and activation of lymphocytes rely on the detection of non-specific signals through receptors.

<p>False</p> Signup and view all the answers

Phosphorylation cascades, activation of transcription factors, and regulation of gene expression are involved in the immune response.

<p>True</p> Signup and view all the answers

During T cell maturation, precursor cells migrate to the bone marrow.

<p>False</p> Signup and view all the answers

B cell maturation involves interactions between developing B cells and stromal cells in the thymus microenvironment.

<p>False</p> Signup and view all the answers

Maturation signals for T cells are mediated by interactions between thymocytes and stromal cells expressing bone marrow epithelial cell markers.

<p>False</p> Signup and view all the answers

Lymphocyte activation is the process by which immature lymphocytes become functionally activated.

<p>False</p> Signup and view all the answers

T cell activation involves recognition of lipopolysaccharide antigens presented by antigen-presenting cells.

<p>False</p> Signup and view all the answers

BCR-initiated signaling pathways involve diverse B cell receptors recognizing a wide range of antigens.

<p>True</p> Signup and view all the answers

NF-κB and AP-1 are transcription factors involved in the maturation of T cells.

<p>False</p> Signup and view all the answers

The BCR-initiated signal pathway includes the activation of kinases and phosphorylation of ITIMs.

<p>False</p> Signup and view all the answers

Lymphocyte maturation is the process by which mature lymphocytes develop into immature, non-functional cells.

<p>False</p> Signup and view all the answers

Cytokines, cell surface receptors, and proteins involved in antibody production are not expressed in response to activated transcription factors.

<p>False</p> Signup and view all the answers

Signaling pathways involved in the maturation and activation of lymphocytes respond to generic molecular cues.

<p>False</p> Signup and view all the answers

Formation of the immune synapse involves the binding of antigens to T cells.

<p>False</p> Signup and view all the answers

Study Notes

T Cell Activation

  • Activation signals for T cells are transmitted through the BCR complex
  • CD4 and CD8 are coreceptors involved in T cell activation signals
  • Signaling events initiated by BCR binding lead to T cell proliferation
  • T cell activation involves recognition of lipopolysaccharide antigens presented by antigen-presenting cells
  • Formation of the immune synapse involves the binding of antigens to T cells

B Cell Activation

  • CD19 and CD21 are coreceptors involved in B cell activation signals
  • BCR-initiated signaling pathways involve diverse B cell receptors recognizing a wide range of antigens
  • The BCR-initiated signal pathway includes the activation of kinases and phosphorylation of ITIMs

Lymphocyte Maturation

  • Maturation and activation of lymphocytes rely on the detection of non-specific signals through receptors
  • During T cell maturation, precursor cells migrate to the bone marrow
  • B cell maturation involves interactions between developing B cells and stromal cells in the thymus microenvironment
  • Maturation signals for T cells are mediated by interactions between thymocytes and stromal cells expressing bone marrow epithelial cell markers

Transcription Factors and Signaling Pathways

  • NF-κB and AP-1 are transcription factors involved in the maturation of T cells
  • Signaling pathways involved in the maturation and activation of lymphocytes respond to generic molecular cues
  • Phosphorylation cascades, activation of transcription factors, and regulation of gene expression are involved in the immune response

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Learn about the process of B cell activation and the detection of activation signals in the immune system. Understand how BCR binding to antigens leads to signaling events and how T cell activation signals are transmitted through specific receptors and molecules.

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