Immune System Cells and Functions Quiz

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What is the primary function of the humoral branch of the immune system?

Effective in viral and fungal infection

Rejection of tissue transplants

Primary defense against bacterial infection (correct)

Destruction of cancer cells

Which cell type is responsible for cell-mediated immunity and defense against viral and fungal infections?

T lymphocytes (correct)

Antibodies

B lymphocytes

Phagocytes

Which primary lymphoid organ is responsible for the maturation and differentiation of B lymphocytes?

Spleen

Bone marrow (correct)

Bursa of Fabricius

Thymus

What is the main function of antibodies produced by B lymphocytes?

Direct combination and neutralization of bacterial toxins (C) Signup and view all the answers

Which immune cell type is responsible for the rejection of tissue transplants?

T lymphocytes (C) Signup and view all the answers

What is the main difference between the humoral and cellular branches of the immune system?

Humoral involves antibody production, while cellular involves direct cell-to-cell contact (C) Signup and view all the answers

Which region of the lymph node is primarily populated by T lymphocytes?

Paracortical region (B) Signup and view all the answers

Which part of the spleen is primarily populated by B lymphocytes?

White pulp (B) Signup and view all the answers

Which type of antigen can stimulate antibody production without the help of T cells?

Thymic-independent antigen (D) Signup and view all the answers

Which property of an antigen refers to its ability to induce a specific immune response?

Immunogenicity (B) Signup and view all the answers

Which type of lymphoid tissue is part of the gut-associated lymphoid tissue (GALT)?

Peyer's patches (D) Signup and view all the answers

Which of the following is a key difference between antigens and immunogens?

Antigens are substances that react with antibodies or sensitized T cells, while immunogens are substances that can induce an immune response. (B) Signup and view all the answers

Which of the following is a key characteristic of adaptive immunity?

It allows the body to recognize and respond to specific antigens. (B) Signup and view all the answers

What is the primary function of T lymphocytes (T cells) in the immune system?

To coordinate the cell-mediated immune response. (C) Signup and view all the answers

Which of the following is a key component of the lymphoid system?

Lymph nodes (A) Signup and view all the answers

What is the primary function of B lymphocytes (B cells) in the immune system?

To produce antibodies against pathogens. (A) Signup and view all the answers

What is the term used to describe the ability of a pathogen to cause disease?

Pathogenicity (D) Signup and view all the answers

Which of the following is an example of a cell-mediated immune response?

The killing of infected cells by cytotoxic T cells. (A) Signup and view all the answers