Plasma cells  (A) tag pathogens with antibodies  (B) are a fragment of a megakaryocyte (C) attack tagged pathogens directly (D) are a part of the innmate immune system

IgE binds to which of these cell types to trigger allergic responses? O 1) B cell O 2) neutrophil O 3) mast cell 4) Monocyte

The complement system of defense is composed of proteins that are always present in the blood. Which statement describes the importance of this system in early pathogen defense? A.) It does not have to be activated by antibodies. B.) It rapidly lower the blood pH. C.) It recognizes specific common pathogens. D.) It causes immediate pathogen lysis.

The basis of all allergic responses lies with the production of ______ by _______. A) antibodies, T cells B) histamine, mast cells C) histamine, B cells D) complement, B cells

5. Results from complement activation and the functions of key components. Mechanisms. (A). Lysis - breaking holes through membrane (B). Induce inflammation (anaphylatoxin) (C). Opsonization Opsonins (D). Augment adaptive response (E). Clearance of soluble immune complexes (Ag/Ab) and apoptotic cells.

The human immune system produces antibodies in response to the presence of antigens.Outline the events that occur during an immune response leading to the production of antibodiesagainst an antigen............................ please solve max 15-20 minutes and no reject thank u

Clonal Selection Hypothesis is the most accepted theory for how immune cells respond to specific antigens.   Explain the clonal selection hypothesis. Use the autoimmune response, and immunological memory to suggest why the hypothesis may be correct….or not?

Johnny has just been infected and needs your help in letting him know how his body is fighting the infection. To do so, describe how the innate and adaptive immune systems work together. You should address the following: 1. define adaptive and innate immunity; 2. Describe the role of natural killer cells (how do they work); 3. what are antigen presenting cells and what is their function, what are MHCs?; 4. describe the role of the complement system; 5. what is the role of interferons?; 6. How do helper T cells, cytotoxic T cells and B lymphocytes work make sure you address adaptive immunity memory?; 7. Define HIV, which cells do they attack and why do some individuals develop persistent lymphadenopathy (swollen or enlarged lymph nodes)?