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: Sketch a B cell antigen receptor. Label the V and C regions of the light and heavy chains. Label the…

A: Immunoglobulin molecules are the globular proteins that are synthesized by the plasma cells located…

Q: Which of the following statements about innate lymphoid cells is true? (ONE ANSWER)   Require the…

A: Innate lymphoid cells (ILCs) are immune cells that lack a specific antigen receptor but can produce…

Q: Concerning the adaptive immunity, which of the following statements is CORRECT:  a. The adaptive…

A: The adaptive immune response does not occur very rapidly. Unlike the innate immune response, which…

Q: What do you mean by innate immunity? Give and explain the components of innate immunity.

A: Immunity is a state of being well or immune. It can also be explained as resistance shown by the…

Q: Which of the following statements is INCORRECT regarding memory B cells? a. Memory B cells express…

A: B cells are a part of adaptive immune response. B cells have B cell receptors (BCRs) on their…

Q: Antibod Immunity and Cell-mediated immunity.

A:

Q: For each of the following statements, indicate whether the statement is true or false. If false,…

A: a. TrueBooster shots are given because the immune response to an antigen weakens over time. Repeated…

Q: What is innate immunity? Also explain its four types of barriers.

A: The immune system protects the body against pathogens and cancer cells. Immunity can be divided into…

Q: Which of the following is not an example of a complement control protein? a. decay-accelerating…

A: Complement system- complement system refers to a series of more than 20 proteins circulating in…

Q: Explain delayed type hypersensitivity (DTH). How might you expect to induce it? What components of…

A: The delayed type hypersensitivity (DTH) is characterized by the T cells recruitment into tissues to…

Q: complement

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

Q: contrast the difference between the adaptive and innate immune system. What cells are involved,…

A: When integrity is breached of the body, skin, or organs, the body responds by activating the immune…

Q: Describe the specific roles of helper, regulatory, and cytotoxic T cells in normal cellular…

A: T cell, are a type of leukocyte that are exclusive white blood cells that is an important part of…

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: Which is/are not part of adaptive immunity?a. phagocytic cells e. antigen receptorsb.…

A: Adaptive immunity is a type of immunity that an organism gets after it has been exposed to an…

Q: Generally, polysaccha are not good antigenS, because B cells recognize thei annot get T-cell help.…

A: INTRODUCTION The immune system consists of cells that protect organisms from foreign invaders. This…

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: Correctly order the steps in cellular Immunity. Below is a sequence of events. Place them in the…

A: The cell mediated immunity is a safe reaction that doesn't include antibodies. Rather, cell mediated…

Q: Explain why each choice (a-d) is correct or incorrect. B lymphocytes are categorized as part of the…

A: The immune system in our body is responsible for protecting us against foreign pathogens. The white…

Q: While working as an immunologist at a local hospital, a patient shares with you that she is…

A: Microorganisms, insects, and worms are among the organisms that live in humans. Some of these…

Q: What produces Autoantibodies? Select one: a. Macrophages b. Memory T cells c. Plasma B cells d.…

A: Antibodies (immune proteins) that mistakenly target and react with a person's own tissues or organs…

Q: Compare and contrast innate and adaptive immunity. Include three similarities in terms of cell…

A: Answer.  Three similarities between innate and adaptive immune system are given in the following…

Q: a.) compare and contrast innate and adaptive immunity. b.) explain why cooperation between innate…

A: Innate immune response prevents the movement and spread of foreign particles in the body. The…

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: Complement receptors and Fc receptors both contribute to removal of immune complexes from the…

A: The immune system is spread throughout the body and involves many types of cells and tissues and…

Q: Match the T-cell component in Column A with its description in Column B. Use each description only…

A: The match the column with respect to t cells are as follows:

Q: Which of the following is true about complement? Check all that apply. Three pathways of…

A:

Q: Which of these is a valid example of an antigen and its corresponding epitope? Select one: a. An…

A: Antigen  is any substance that causes body's immune system to produce antibodies against it .

Q: Many cells in the human body have proteins on the surface that are able to interact with the…

A: Introduction  Autoimmunity is defined as the inability of the body to distinguish between self and…

Q: The emphasis in innate immunity is that it is non-specific. Explain how two different factors/parts…

A: The immune system is the defense system of the body. It comprises different cells and organs that…

Q: Select all of the following statetments that apply to immunological memory:   A. A small…

A: Immunological memory refers to the immune system's capacity to react to infections more quickly and…

Q: 1. Can create antibodies 2. Can destroy pathogens by secreting perforins 3. Is activated by a…

A: The humoral immune system deals with antigens from pathogens that are freely circulating, or outside…

Q: During the secondary immune response, in the serum you would expect a. to find a greater…

A: Introduction The secondary immune response occurs on repeated antigen exposures, with a stronger…

Q: A 55-year-old male was diagnosed with rheumatoid arthritis (RA) after experiencing complications…

A: Rheumatoid arthritis is an autoimmune disease. An autoimmune disease refers to when the body's…

Q: Individuals infected with herpes simplex virus (HSV) mount protective antibody responses directed…

A: The complement system of our innate immunity depends on the protein C3. C3 is another name for the…

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: I. Attach to mast cells and are involved in allergic reactions. II. The first antibodies to be…

A: The capability of the body to induce immune response is called immunity. The foreign particle that…

Q: How may B cells be activated? Select all that apply. Select one or more: a. Crosslinking of BCRS and…

A: How may B cells be activated?

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: A 55-year-old male was diagnosed with rheumatoid arthritis (RA) after experiencing complications…

A: Introduction Rheumatoid arthritis (RA) is a long-term autoimmune condition that mostly affects the…

Q: Place each events number listed below on the correct part of the “stages of illness” graph (picture…

A: * Immune cells are of two types  B cells  T cells  * T cells also called thymus cells and B cells…

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: CD1-restricted α:β T cells respond to lipid antigens of mycobacterial pathogens using all except…

A: Introduction  The cluster of differentiation (also known as cluster of designation or classification…

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.