AP BIOLOGY

Detailed explanation-1: -Phagocytes (neutrophils and monocytes) are immune cells that play a critical role in both the early and late stages of immune responses. Their main role is to circulate and migrate through tissues to ingest and destroy both microbes and cellular debris.

Detailed explanation-2: -Neutrophils are the most abundant white blood cell in humans and arise from granulocytes. They are also phagocytic in nature, and Metchnikoff called neutrophils the “archetypal phagocyte”. Neutrophils are the first immune cells to be recruited, which can be through the cytokines produced by macrophages.

Detailed explanation-3: -(FA-goh-site) A type of immune cell that can surround and kill microorganisms, ingest foreign material, and remove dead cells. It can also boost immune responses. Monocytes, macrophages, and neutrophils are phagocytes.

Detailed explanation-4: -Phagocytosis. The ability of neutrophils to ingest and subsequently kill invading microbes is essential for the maintenance of host health. Neutrophils remove bacterial and fungal pathogens through a process known as phagocytosis.

Detailed explanation-5: -In the blood, two types of white blood cells, neutrophilic leukocytes (microphages) and monocytes (macrophages), are phagocytic.