Any aspect of the immune system can be deficient.  Which of the following deficiencies would primarily affect the BARRIER function of immunity? Group of answer choices A. Complement Deficiencies, in which a variety of complement proteins do     not  function properly B. DiGeorge Syndrome, in which the thymus does not develop properly C. Selective IgA deficiency, in which IgA antibodies are produced in very low amounts D. Severe Combined Immune Deficiency (SCID), in which all T and B cell functions are absent

Q: Which statement is true of autoimmunity? a. It involves misshapen antibodies. b. It refers to…

A: Immunity can be defined as the ability of an organism to fight against infections caused by a…

Q: plement system of defense is opsonization. This process  A.) creates an acidic environment that…

A: Pathogen can be defined as the infectious agent is considered as the biological agent that  will…

Q: Which of the following is not a consequence of activation of the complement system? Select one: a.…

A: The immune system of the body can help in preventing various diseases as well as in repairing any…

Q: Cell-mediated immune response includes the following except to ______. A. activate B lymphocyte B.…

A: Cell mediated immune response is carried out by T lymohocytes of our immune system. It is an immune…

Q: Which of the following is not true about the complementsystem?(a) It is a set of more than 20…

A: The complement system is otherwise known as complement cascade and is associated with the immune…

Q: Which of the following statements is NOT true of a fever? a. Temperature is regulated by chemicals…

A: 1) Option E ( both c and d)  2) option B

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: complement

A: Option D is answer .    The presentation of the antigens to the T helper cells for their activation…

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: One very effective treatment for SARS-Cov-2 is the injection of serum containing antibodies from…

A: Naturally acquired immunity is when the body encounters live pathogens which causes disease and the…

Q: B cells are responsible for (a) cell-mediated immunity. (b) immune surveillance. (c)…

A: Immunology is the branch of medical science that deals with the study of the immune system and…

Q: Which term is used to describe hypersensitivity of the immune system to reLatively harmless…

A: The immune system is made up of special organs, cells and chemicals that fight infection (microbes).…

Q: The acquired ability to prevent an unnecessary or destructive immune reaction to a harmless foreign…

A: Immune tolerance is significant for ordinary physiology. Central tolerance is the fundamental way…

Q: Explain why each choice (a-d) is correct or incorrect.  A vaccine is effective because  a. The…

A: Vaccine contain weak or inactive parts of particular antigen that triggers an immune response…

Q: .

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

Q: A patient has contracted an upper respiratory infection caused by a virus. Her initial adaptive…

A: Immunity is the body’s ability to resist and eliminate the potential harmful foreign invaders to…

Q: Which of the following is NOT true about T cells?(a) T cells develop from lymphoid stem cells in the…

A: A defense system in the body of an individual which constitutes a complex network of cells and…

Q: match the cytokine with its description. 1.Interleukin-1 2.Interleukin-2 3.Interleukin-12   a.…

A: Interleukins (IL) are chemical substances that play a vital role in varied rules of the immune…

Q: Which is an example of passive immunity? A) only a fetus acquiring antibodies through the placenta…

A: Passive immunity can be defined as the transfer of active humoral immunity of antibodies. It can…

Q: Which of these statements about gamma interferon is false? a. It is a polypeptide autocrine…

A: The interferon gamma is a dimerized soluble cytokine that is the only member of type II class of…

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 statements regarding intraepithelial lymphocytes is false? (Select all that…

A: BASIC INFORMATION IMMUNE SYSTEM  It defends our body from the foreign particles which can cause…

Q: Indicate whether the following questions are true (T) or false (F). a. Secondary immune responses…

A: When the body encounters an antigen, immune responses are produced. These immune responses can be…

Q: A table comparing the biological characteristics of the five classes of immunoglobulins is shown…

A: Immunoglobulins are also called as antibodies which are made by white blood cell (WBC)

Q: Complement activation: (a) stimulates inflammation. (b) attracts phagocytes.(c) enhances…

A: The complement system is a collection of more than 20 proteins found in the blood and tissue fluids…

Q: Two of the major actions of complement are a. increased inflammatory response and cytolysis. b.…

A: The complement system gets activated when it comes in contact with the antibody molecule that is…

Q: Immunoglobins help eliminate the pathogen through the process of:

A: Option C . Direct Phagocytosis .

Q: Which of the following are true of interferons? Select all that apply. O They are a critical part of…

A: In the inflammatory response to infections, interferons (IFNs) are proteins produced by a number of…

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

A:

Q: Explain why each choice (a-d) is correct or incorrect.  Which of the following examples below…

A: An autoimmune disease is a condition in which your immune system erroneously attacks your body. The…

Q: Suppose a person recovers normally from viral infections, but then gets the same viral infections…

A: The B-lymphocytes or the B-cell and the the T-lymphocytes are t-cells are very important for the the…

Q: Name two ways in which the presence of antibodies enhances phagocytosis.

A: Antibodies are immune proteins that circulate in the bloodstream and identify and kill foreign…

Q: Which of the following describes the developmental pathway for T cells? a. thymus → bone marrow →…

A: A type of leukocyte that plays an important role in the immune system refers to the T cell. T cells,…

Q: All of the following are true in reference to T-cell priming except _____. a. it occurs in primary…

A: The immune system of the human body consists of white blood cells, antibodies, spleen, thymus, and…

Q: . Describe the four types of hypersensitivity reaction as to: A. Antibody involved B. Complement…

A: Four types of hypersensitivity are given below :  Type I: reaction mediated by IgE antibodies. Type…

Q: Antibodies against a specific antigen can be injected into a person to provide passive immunity. For…

A: A very strong network of cells, organs, and tissues that guard the body against various infections…

Q: are substances that provoke a specific immune response which is so discriminating that only a single…

A: The human body has immune system that Clears foreign substances and fight against pathogens. There…

Q: Which part of an antibody binds to the antigen? a. Heavy chain. b. Light chain. c. Variable region.…

A: Which part of the antibody binds to antigen ? Answer : c. Variable region The variable region is…

Q: The inflammatory process involves Select one: O A. Passive immunity, MHC proteins, and interferon.…

A: biological systems have different ways to respond to pathogens and other xenobiotics . inflammation…

Q: Explain why the processes of T-lymphocytes are collectively called the cellmediated branch of…

A: The adaptive immune response refer to an initial infection takes much longer to form than the innate…

Q: B lymphocytes, the precursors of plasma cells, are triggered to proliferate by the binding of…

A: Lymphocytes are white blood cells . They are immune cells made in bone marrow and found in blood and…

Q: The complement system of defense is composed of proteins that are always present in the blood. Which…

A: The complement system of defense is composed of proteins that are always present in the blood. The…

Q: The benefit of specific immunity is the production of ________ that provide long-lasting protection.…

A: Solution mentioned below

Q: The followings are functions of antibody eliminating unknown particles or cells which enter into the…

A: An antibody is also known by the name of immunoglobulin. It is a large Y shaped protein that is…

Defense Mechanism

Circumstances influence and compel people to behave in a certain way. One such behavior is a defense mechanism. It is employed by people to escape from unpleasant circumstances, thoughts and actions. Defense mechanisms are, thus, psychological strategies that help to avert and avoid unwanted feelings such as guilt or shame and situations such as threat and danger.