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T-Cells: Types, Functions, and Activation

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T-Cells: Types, Functions, and Activation

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Questions and Answers

What is the primary function of a helper T-cell?

To stimulate and coordinate the activities of other immune cells (correct)

To kill infected or cancerous cells

To provide long-term immunity against pathogens

To suppress the immune response

Which type of T-cell is responsible for directly killing infected or cancerous cells?

Memory T-cell

Helper T-cell

Cytotoxic T-cell (correct)

Suppressor T-cell

What is the primary function of memory T-cells?

To suppress the immune response

To directly kill infected or cancerous cells

To provide long-term immunity against previously encountered pathogens (correct)

To stimulate the activities of other immune cells

Which type of T-cell expresses the CD4 protein on its surface?

Helper T-cell Signup and view all the answers

What is the primary role of suppressor T-cells in the immune system?

To regulate and suppress the immune response Signup and view all the answers

What is the primary function of suppressor T cells?

To prevent the immune system from overreacting Signup and view all the answers

Which of the following is NOT one of the primary functions of T cells?

Regulating blood pressure Signup and view all the answers

Where do T cells originate and mature?

Bone marrow and thymus Signup and view all the answers

What is the process by which T cells become activated?

They bind to specific antigens on the surface of antigen-presenting cells Signup and view all the answers

Which of the following is NOT a type of helper T cell mentioned in the text?

Th3 Signup and view all the answers