The Immune System Word Search
The Immune System, as a word search. 12 words drawn from the terms and ideas of a school subject sit hidden in a 15×15 letter grid, running in every direction. Drag across a word to claim it, and clear the board to finish.
Words to find: ANTIBODY, PATHOGEN, LYMPHOCYTE, MACROPHAGE, VACCINE, IMMUNITY, ANTIGEN, LYMPHOKINE, PHAGOCYTE, MEMBRANE, HISTAMINE, NEUTROPHIL.
Every word on the list appears exactly once. Words can run forwards or backwards, so scan both directions before you move on.
The Immune System word list, defined
- ANTIBODY /ˈæntɪbɒdi/ · noun
- A protein produced by the immune system in response to a foreign substance (an antigen), which binds specifically to that substance to help neutralize or destroy it. Related: immunoglobulin, immune protein.
- PATHOGEN /ˈpæθədʒən/ · noun
- An organism or other agent that can cause disease, especially a microorganism such as a bacterium, virus, fungus, or parasite. Related: infective agent, disease-causing organism, microbe, germ.
- LYMPHOCYTE /ˈlɪmfəsaɪt/ · noun
- A type of white blood cell found in the blood and lymphatic tissues that participates in the immune system’s defence against infection and disease. The main kinds include B lymphocytes, which produce antibodies, and T lymphocytes, which coordinate and carry out immune responses. Related: white blood cell, lymphoid cell.
- MACROPHAGE /ˈmæk.rəˌfɑːdʒ/ · noun
- A large immune cell that engulfs and digests foreign particles, microorganisms, and cellular debris. Macrophages are found in tissues and can present antigens to other cells of the immune system. Related: histiocyte, phagocyte.
- VACCINE /vækˈsiːn/ · noun and verb
- As a noun, a vaccine is a biological preparation that stimulates the immune system to develop protection against a specific disease or pathogen. As a verb, to vaccinate means to administer a vaccine, thereby providing or aiming to provide immunity. Related: immunization, inoculation, immuniser.
- IMMUNITY /ɪˈmjuːnəti/ · noun
- Immunity is the state of being protected against a particular disease or harmful influence. In law, it can also mean exemption from prosecution, liability, or legal responsibility. Related: resistance, protection, security, exemption.
- ANTIGEN /ˈæntɪdʒən/ · noun
- A substance, typically a protein or polysaccharide, that the immune system recognizes as foreign and that triggers the production of antibodies or an immune response. Related: immunogen, allergen, pathogen, hapten.
- LYMPHOKINE /ˈlɪmfəʊkaɪn/ · noun
- A cytokine produced by lymphocytes, especially T cells, that helps coordinate immune responses. The term is now less common than the broader term cytokine. Related: lymphokine, lymphocytokine, interleukin.
- PHAGOCYTE /ˈfæɡəˌsaɪt/ · noun
- A cell, especially a white blood cell, that engulfs and digests foreign particles, microorganisms, or cellular debris. Related: phagocytic cell.
- MEMBRANE /ˈmɛm.breɪn/ · noun
- A thin, flexible sheet or layer of material that separates, covers, or forms part of a larger structure. In biology, the term refers to a specialized layer of tissue or lipid bilayer that encloses or separates cells and organs. Related: layer, film, sheath, covering.
- HISTAMINE /ˈhɪstəmiːn/ · noun
- A biogenic amine and chemical messenger released by cells, especially mast cells and basophils, that helps regulate immune responses, blood vessels, and gastric acid secretion.
- NEUTROPHIL /ˈnuːtrəfɪl/ · noun
- A type of white blood cell that is the most abundant member of the granulocyte family. Neutrophils engulf and destroy bacteria and other microorganisms through phagocytosis, and they also contribute to inflammation. Related: neutrophilic leukocyte, polymorphonuclear leukocyte, granulocyte.
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