3 4 Some antibodies can be passed from mother to child during breastfeeding. What is this type of immunity called? A. Artificial passive B. Natural active C. Artificial active D. Natural passive The diagram represents the production of the hormone insulin in laboratory.

Q: Which of the following statements about T cells is false? a. Helper T cells release cytokines while…

A: Immunity is the capability of multicellular organisms to resist the attack of harmful…

Q: 21. The following is correct about superantigens? A. cause autoimmune disease C. activates B cells…

A: Introduction :- Superantigens (SAgs) are a group of antigens that cause the immune system to become…

Q: Meme, a 1-day old normal baby is brought to the newborn care unit for BCG and Hep B vaccines. The…

A: Innate immunity is defined as the immunity obtained at the time of birth. It is non specific type of…

Q: Which of the following is part of the second line of defense against pathogens? a. skin b. mucus…

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

Q: All of the following are necessary for a specific immune response except: O a. red blood cells O b.…

A: Immune response is the manner in which the body protects itself against substances it considers…

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: The process of removing auto-reactive b and T cells during maturation is called: a. Clonal…

A: Clonal deletion is the removal through apoptosis of B cells and T cells that has expressed…

Q: Once Tfh cells have been activated against vaccine delivered intramuscularly which Constant (C)…

A: There are five classes of immunoglobulin or antibodies. All these antibodies have variable and…

Q: his člašš of antibody is a pentamer. . O a. IgG O b. IgE Oc IgD

A: Answer. Antibodies, the antigen binding glycoproteins are synthesized exclusively by B cells in…

Q: What class of antibodies is normally found in the mucosa of the respiratory tract? a. IG-A b. IG-D…

A: Antibodies are proteins produced and secreted by B cells. They bind to foreign substances, like…

Q: A number of minor cancerous cells and infected viruses, such as Epstein Barr (EBV), are able to go…

A: Cytotoxic T cells or cytotoxic T lymphocytes are the type of T lymphocytes that plays a role in…

Q: Which structure is not functioning properly if an electrical device is needed to stimulate the atria…

A: The heart has an electrical conduction system that consists of a highly constricted and controlled…

Q: .

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

Q: When immunity is developed in another individual is transferred to an individual who was not…

A: The body's ability to identify pathogens (antigens),to eliminate dangerous pathogens to prevent them…

Q: A. vagina B. trachea and bronchi C. skin D. stomach E. mouth select A B C D E 1. villi pushing…

A: 1) vagina - low pH , antibodies and secretions  2) trachea and bronchi - villi pushing material…

Q: The three major pathways of complement activation use different molecules and mechanisms to initiate…

A: Complement-mediated immune response:  The complement system of the body which is a part of the…

Q: Which pathway of complement activation acts in conjunction with the action of antibodies? А. the…

A: Immunity is defined as the ability of an organism to resist infections by pathogens or it is the…

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: Which DOES NOT describe monoclonal antibodies? Group of answer choices a. Monoclonal antibodies are…

A: Monoclonal antibodies are made by using identical immune cells that are all clones of a specific…

Q: Which of the following binds to the Fc portion of the antibody?     A. C1q   B. C2a   C. C1r…

A: Complement systems is a complex set of soluble molecule that generate a variety of reactions that…

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: 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: When first exposed to a foreign molecule, are the first class of antibodies generated a. cytokines…

A: The immune response is a set of responsive mechanisms carried out by the immune system of the body…

Q: The nucleus of B lymphocytes receives the signal indicating that the corresponding epitope was found…

A: The B lymphocyte (B cell) is indeed one of the body's most essential cells. By developing antibodies…

Q: Put a case forward for the importance of antigen specific CD4+ T helper cells, relative to other T…

A: T cells get their name from the fact that they are mostly developed in the thymus. They recognise…

Q: Select all of the pathways that can activate without antibodies.   A. Alternative   B. Lectin…

A: Alternate pathway is a type of complement pathway in which pathogens are Opsonized and killed.…

Q: 6. Match the example/scenario provided to the type of humoral immunity. a. active, naturally…

A: The ability of the body to fight back any infection in the body comes from its immune system. The…

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.