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

Q: The first exposure of a person to an allergen results in the production of the IgE class of immut…

A: In the immune response, mast cells are essential, especially during allergic responses. During a…

Q: 1) Which line of defense are these immune response components part of? A) Complement: B)…

A: Immune system helps in protection of organism against disease.Immune system helps in detection and…

Q: Differentiation of B cells into Ab-producing plasma cells occurs in the: a) Lymph nodes b) Spleen c)…

A: B cells or B lymphocytes, which are produced from bursae, are important components of the adaptive…

Q: How many types of antibodies are there? (a) Five. (b) Three. (c) Two. (d) Four.

A: Antigens can be proteins, such as cancer cell receptors, sugars on bacterial and viral cell…

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: 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: nterferons are:  (a) Cytokine barriers (b) Physical barriers (c) Cellular barriers (d)…

A: Interferons (IFN) are glycoproteins produced by specific cells in response to the presence of…

Q: Which of the following statements are correct regarding NK cells? a)they are present in the blood…

A: Natural Killer (NK) cells are considered the cells of the innate immune system. It is a type of…

Q: B) Complement system activation and elimination of a bacterial pathogen "Map the activation of the…

A: The complement system is a part of the body's defence system that enhances the ability of antibodies…

Q: Which of the following component is the first involved in the classical complement activation…

A: A group of organs that utilize an immune response to defend the body against external substances or…

Q: How does the thymus help the body avoid autoimmune responses? (A) By negatively selecting T cells…

A: The immune system is a complicated network of cells, tissues, and organs that work together to…

Q: Which of the following is NOT true of Innate Lymphoid Cells (ILCs)? A) Each ILC type responds to a…

A: Innate lymphoid cells are immune cells that mirror the phenotype and function of T cells. It…

Q: Using the letters from column B, match the cell description in column A. (Note that all require more…

A: Different immune cells are involved in mediating protection to the host against the pathogen. There…

Q: department minutes after being bitten by a black widow spider. You immediatrely inject gamma…

A: It is also known as vaccination. It is a process to protect individuals from infectious diseases.…

Q: Injections into the heel of a girl (whose blisters were licked by a rabies-infected kitten) to…

A: Our body has own system to fight against pathogen. There are different barriers such as physical…

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: Immunosuppression is a lowering of the responsiveness ofthe immune system to materials it recognizes…

A: The immune system safeguards the body against harmful pathogens. The immune cells (B-cells, T-cells,…

Q: Interferons are considered as ______ signals IL-2 is considered as ________ signals IL-1 is…

A: Signaling molecules are small molecules, ions, or even gas that can either cross the lipid bilayer…

Q: Which of the following types of antibodies may function to trigger the nonspecific event of…

A: Antibody or immunoglobulins (Ig) are circulating glycoprotein molecules, secreted by B-lymphocyte…

Q: Put the following steps in order for cell-mediated immunereactions:(a) Differentiated T cells…

A: Cell-mediated immune response can be defined as the immune response generated by the cells such as…

Q: Past paper

A: (a) A complicated interaction of multiple immunological variables causes the concurrent rise in…

Q: A person with AIDS will probably:(a) Not make antibody(b) Make a response to T-dependent antigens(c)…

A: AIDS stands for Acquired Immuno Deficiency Syndrome. It is a viral disease caused by Human Immuno…

Q: The major histocompatibility complex (MHC) (a) consists of Y-shaped molecules (b) encodes certain…

A: Immunology is an important branch of biology which include the study of immunity of different…

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: B-cell activation requires ____ b) antigens binding only c) antigen binding, antibody production,…

A: The immune system of the body play a major role in defending against the pathogenic invaders such as…

Q: CD4 markers are associated with (a) cytotoxic cells. (b) suppressor cells. (c) helper T cells. (d)…

A: The T-Cell (T lymphocyte) receptors are the antigen-specific receptors. There are two transmembrane…

Q: Why are only very small amounts of antigen injected?

A: Antigens are any foreign substances which evoke immune response in our body as they enters the body.…

Q: T cells and B cells can be activated only by, (a) pathogenic microorganisms.(b) interleukins,…

A: T cell, also called T lymphocyte, type of leukocyte (white blood cell) that is an essential part of…

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: . 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: Both NK cells and cytotoxic T cells "kill" via the same mechanisms - what are they?  Are these cells…

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

Q: 1. (a) (b) (c) (d) (e) (f) (g) (h) Provide the word that best fits the definition for each part…

A: A system of blood proteins that produces a protease cascade on activation that can lead to marking…

Q: What is the other pathway of antigen processing? What is the advantage of having two distinct…

A: Antigen processing, also known as the cytosolic pathway, is an immune mechanism which prepares…

Q: Immune system of humans     a) Secreted B cell receptors can function as opsonins.   b) MHC class II…

A: The immune system is a complex network of cells, tissues, and organs that work together to defend…

Q: Which statement best summarizes the two types of cells that B cells differentiate to form? a.) B…

A: Immune system is responsible for providing the protection to the body against foreign antigen. If…

Q: Please explain in depth, 800 word li

A: The Immune framework's approach to safeguarding the body against infectious disease. Immunity to an…

Q: A 40 year old man with a compliment deficiency agrees to participate in a clinical study of immune…

A: A class of autoantibodies known as C3 nephritic factors (C3NFs) allow for ongoing overactivation of…

Q: . Compared to innate immunity, adaptive immunity (A) has a response time of minutes to hours. (B)…

A: Our immune response protects us from the different pathogens and allergens. When an antigen…

Q: Select the type of T cell that plays a role in diminshing an immune response:

A: T cell or T lymphocyte, is a vital component of the immune system. When it comes to protecting the…

Q: A 23 year old woman has a boil on the hand from which a gram-positive bacteria was isolated. What…

A: Infection resolution occurs by a process ,when bacteria was isolated.