Which of the following statements about the immune system is/are true?Question 15Select one or more:a.Moderate exercise decreases numbers of circulating neutrophils, monocytes and natural killer cells.b.The immune system uses chemokines to attract cells such as neutrophils.c.Immune cells can communicate with each other by binding to receptors on each other’s surfaces.d.The immune system uses cytokines for communication over short distances.e.Adaptive immunity is slower-acting than innate immunity.

Which of the following statements about the immune system is/are true?Question 2Select one or more:a.Phagocytosis is the process by which certain cells, such as macrophages and neutrophils, engulf and digest foreign particles, bacteria, and dead or dying cells.b.Adaptive immunity is faster-acting than innate immunity.c.The immune system uses chemokines to attract cells such as neutrophils.d.Immune cells can communicate with each other by binding to receptors on each other’s surfaces.e.The immune system uses cytokines for communication over short distances.

Which of the following statements about phagocytes is TRUE?Select one alternative:Macrophages can undertake repeated phagocytosisPus is formed predominantly from dead macrophagesNeutrophils require activation before they are effectiveNeutrophils are long living cells

Which of the following statements regarding inflammation is TRUE?Group of answer choicesPersistent microbial infection is a cause of chronic inflammation.Active inflammation, tissue destruction, and attempts at repair occur simultaneously in acute inflammation.Lymphocytes are mobilized in both antibody and cell-mediated immune reactions during acute inflammation.Chronic inflammation is characterised by the accumulation of large numbers of neutrophils.

True/False: The immune system is the only system that protects the body from diseases

Which of the following are not part of the adaptive immune system?ANSWERT-cellsAntibodiesNeutrophilsLymphocytes