The _____ occurs 6–8 hours after an initial type I allergic response in which mast cells produce leukotrienes, chemokines, and cytokines. a. Arthus reaction b. late-phase reaction c. delayed-type hypersensitivity reaction d. condition known as anaphylactic shock e. skin rash known as chronic urticaria.

Q: vaccination provides natural passive immunity A. True B. False 1e. Lymph nodes have several…

A: Answer 1a Toxoids and vaccine function similarly  True this statement is correct.  Answer 1b Active…

Q: b Production of complement c. Production of IL-6 d. Production of CRP e. All of the above 41. NK…

A: Hey, since there are multiple questions posted, we will answer first two questions (41 and 42). If…

Q: The first cell type active in the innate response is usually a(n)       A) phagocyte.…

A: The innate immune system is the first line of defence in the body.

Q: Why must antibody treatments like ZMapp be composed of monoclonal antibodies instead of polyclonal…

A: ZMapp is a experimental drug against Ebola virus. It consists of three monoclonal antibody.…

Q: Which of these statements about the Fab portion of antibodies is true? a.It binds to antigens. b.Its…

A: Immunology deals with the immune system that gives protection to the body from the harmful…

Q: Mark the following statements as true or false. If a statement is false, correct is to make a true…

A: A)  true B) false,  secondary immunue response is controlled by T- cells

Q: To become a fully activated, antibody-secreting cell, B cellsusually need:(a) To encounter an…

A: Differentiation of B cells is important for the completion of the adaptive immune response. It is…

Q: Your patient is born without B cells. He cannot a. fight off intracellular infections b. have a Type…

A: Introduction B lymphocytes, commonly known as B cells, produce antibodies, which are a type of…

Q: The cross-linkage of antigenic cells by antibodies is known asa. opsonization b. a cross-reaction c.…

A: Antibodies bind with antigen via non-covalent bonds like hydrogen bonds, van der waals interaction.…

Q: A second exposure to a given foreign antigen elicits a rapid and pronounced immune response…

A: Immunity is the capability of the body to fight against foreign attack and maintain the persistence…

Q: A person who has received a vaccine for human papillomavirus (HPV), which causes genital warts and…

A: Answer: Option: a] Is able to produce antibodies against HPV.       Only a subset of individuals…

Q: Immunoglobulin A (a) recognizes pathogen-associated molecular patterns (b) binds with NK cells (c)…

A: The immune system of the body protects the individual from the attack of external pathogens. The…

Q: .

A: There are two types of the T cells based on the glycoprotein attached , these are CD4 cells and the…

Q: Which of the following is a characteristic of a cytotoxic T cell?   Question 7 options:   A)  They…

A: To find: The characteristic of a cytotoxic T cell

Q: Which statement is incorrect regarding Type IV Hypersensitivity? O A) T-helper cells are activated…

A: Contact dermatitis takes place when the skin comes in contact with an allergen directly. It results…

Q: An allergic reaction is an example of:

A: An allergic reaction is an example of:

Q: DiGeorge syndrome is a congenital disease that results in a poorly developed, nonfunctioning thymus…

A: Primary immunodeficiency are the immunodeficiency diseases which arises from the birth where as…

Q: The primary antibody mediated immunity response will: O A) Produce high levels of IgG. O B) Allow…

A: A primary response is the first exposure of an individual to an immunogen (antigen that can activate…

Q: Antibodiesa. prevent antigens from binding together.b. promote phagocytosis.c. inhibit…

A: Answer: Introduction: Antibody is also known as immunoglobulin, a protein formed by the immune…

Q: Which of the following does not occur during a secondary immuneresponse?a. Antibodies are made…

A: Secondary Immune Response: Secondary Immune Response is one of the important features in which the…

Q: Cytokines (a) are regulatory Toll-like receptors (b) prevent the inflammatory response (c) include…

A: Cytokines are a group of proteins released by specialized immune cells. These proteins work as a…

Q: The pathogenesis of food allergy involves:       a)  The production of immunoglobulin G to…

A: The immune system is a control network of organs and immune cells that detect and kill foreign…

Q: Which of the following is false about HLA class I molecules? A. They are encoded by multiple and…

A: INTRODUCTION HLA Human leukocyte antigen, when a cell is infected with virus or any harmful agent…

Q: To become a fully activated, antibody-secreting cell, B cells usually need: a. to encounter an…

A:

Q: . Which of these is not part of insect immunity?(A) enzyme activation of…

A: The multicellular organisms like mammals and insects are exposed to pathogens present in the…

Q: Upon further testing, it is found that Matthew in question 4 does have normal cellular immunity.…

A: Antibody

Q: One of the common characteristics of lymphocytes (1), neutrophils, and macrophages) the resulting…

A: In the human body, the resistance against the entry of any foreign particle or antigens is executed…

Q: In table form, differentiate Primary from Secondary Immune Response according to the ff. a. type of…

A:

Q: Which cells produce antibodies? a. Neutrophils. b. Dendritic cells. c. Cytotoxic T cells. d.…

A: In immunology, white blood cells or leukocytes can be further categorized into lymphocytes,…

Q: In the secondary response, the IgG levels rise much faster than they did during the first antibody…

A: The secondary immune response:It takes place when a person is re infected and become exposed to the…

Q: Which ONE of the following is necessary after chimeric antigen receptor (CAR)‐T cell therapy for…

A: Lymphoid leukemia is the abnormal proliferation of the immature lymphocytes, which leads to the…

Q: Which of the following statements regarding T cells activated by specific antigen is incorrect? a.…

A: Lymphocytes are involved in adaptive immune responses.

Q: Toll-like receptors (TLRS) act to A. cause phagocytic chemotaxis. B. induce phagocytosis. C. bind…

A: The immune system of any living being is important for its living or survival. When the immune…

Q: In a normal individual, a T cell that interacts with a self-antigen in the thymus will more than…

A: Introduction  Immunity is the property or ability of the body to defend against the pathogens.…

Q: If B cells making high-affinity IgG4 are unable to switch to IgE at a late stage in the germinal…

A: Helminths are parasites that cause several infections.

Q: Which statement describes a limitation of T-cell receptors (TCRs) compared to B-cell receptors…

A: Membrane-bound immunoglobulin on the B-cell surface serves as the cell's receptor for antigen and is…

Q: Unlike cytotoxic T lymphocytes, NK cells do not _____. (Select all that apply.) a. secrete…

A: Natural killer (NK) cells are lymphocyte that descend from the very same progenitor as T and B…

Q: There is a second, delayed spike of IgM in the secondary response. Why might this be…

A: The primary immune response occurs when an antigen comes in contact with the immune system for the…

Q: Which of the following statements is true about the IL-1 family of cytokines? A. They are powerful…

A: IL-1(Interleukin-1) family of cytokines are a group of 11 cytokines that are associated with innate…

Q: Type of specific resistance that has been introduced to the body is already antibodies that provide…

A: A. Natural immunity:- It is a kind of immune response/immunity that the body develops on its own…

Q: The first line of defense against pathogens includes a. NK cells. b. stomach PH. c. phagocytes. d.…

A: The first line of defense against pathogens Answer : b Stomach pH The first line of defense…

Q: Which of the following is the most likely future outcome for a thymocyte just entering the thymus?…

A: Thymus is a flat bilobed organ situated above the heart. Each lobe is surrounded by capsule and…

Q: Select best one. Which of these cell types aids the activation of T lymphocytes by antigens? a.…

A: We know that, Adaptive immunity is further classified as humoral and cell-mediated immunity. Humoral…

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.