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Lymphocytes include: A. B-cell B. T-cell C. Monocytes D. Both A & B Nature kille

ID: 181506 • Letter: L

Question

Lymphocytes include: A. B-cell B. T-cell C. Monocytes D. Both A & B Nature killer cells attack: A Defective or infected cells. B. Monocytes C. Antibody D. B & C HIV infects this white blood cell: A B-cell B. T-cell C. monocytes D. both A & B B cell: A makes antibodies B. Matures in bone marrow C. Matures in thymus D. Both A & B T cells mature in: A Bone marrow B. Blood C. Thymus D. All of the above Antigens: A. Made by B-cells B. Made by T-cells C. Intiate immune response D. None

Explanation / Answer

Answer:

1). D. Both A & B

A lymphocyte is one of the subtypes of white blood cell in a vertebrate's immune system. Lymphocytes include natural killer cells (NK cells) (which function in cell-mediated, cytotoxic innate immunity), T cells (for cell-mediated, cytotoxic adaptive immunity), and B cells (for humoral, antibody-driven adaptive immunity).

2). A. Defective or infected cells

Natural killer cells are white blood cells that can kill and contain cancer and infectious diseases.

3). B. T-Cell

HIV destroys part of the immune (say: ih-myoon) system. Specifically, it affects a type of white blood cell called the T lymphocyte (say: lim-foh-site), or T cell.

4). D. Both A & B

Each B cell produces a single species of antibody, each with a unique antigen-binding site and they mature in the bone marrow.

5). C. Thymus

T cells migrate to and mature in a distinct organ, called the thymus.

6). C. Innate immune response

Antigene is a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.