The mechanism of cross-presentation by dendritic cells is an essential pathway for generating CD8 T cell responses to some intracellular pathogens. If this pathway did not exist, we would be highly susceptible to: Intracellular pathogens that can survive inside macrophage endocytic vesicles Intracellular pathogens that are able to evade antibody responses Intracellular pathogens that do not infect and replicate in dendritic cells Intracellular pathogens that can spread from cell to cell by inducing cell fusion Intracellular pathogens that infect and replicate in red blood cells

Q: Cytotoxic effector T cells also produce inflammatory cytokines such as IFN-g and TNF-a when their…

A: According to the question, we have to find out the reason behind the enhanced activity of the…

Q: Immature B-cells express only IgM on its membrane, and if it encounters antigen the IgM will be…

A: Switch Recombination:- It is a process in immune system where B-cells changes the class of…

Q: Adaptive immune responses are slow to develop, taking days to weeks after exposure to reach their…

A: Immunity It is a resistance acquired by a host towards an injury causing microbes or overall ability…

Q: Biology Monoclonal antibodies are used clinically as for anti-tumor immunotherapy. Which of the…

A: What is not the mechanism or least effective mechanism of monoclonal antibodies to control the…

Q: A pairing of MHC and antigene presented on a cell surface is what T immune cells recognize and use…

A: Antigen  An antigen is a foreign objects that stimulates the immune system of affected person.

Q: Which of the following is a FALSE statement about innate immunity? Natural killer cells are…

A: Answer:  2nd option: It must be primed by presence of a specific antigen.

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: What are steps in the inflammation response? Select all that apply.   Signaling molecules decrease…

A: Need to find the the inflammatory response from the following options. The inflammatory response…

Q: Different classes of immunoglobulins are distinguished by the structure of their heavy chain…

A: Introduction: An antibody is a glycoprotein produced by the plasma cells in response to an allergen…

Q: Describe the roles that phagocytic and nonphagocytic cells and plasma proteins such as complement…

A: The innate immune response is the primary defense present in all multicellular organisms. This…

Q: Could a TC cell induce apoptosis in a “self” cell that lost the ability to produce MHC class I…

A: The ability of the recipient's antigen-presenting cells to select up antigens in tissues and…

Q: Pathogens produce several types of proteins that can inhibit complement activation. The importance…

A: Complement activation is one of the most important ways of innate immune system, to get rid of…

Q: Mycobacteria are intracellular pathogens that have adapted to life inside phagocytic cells, such as…

A: Mycobacterium is obligate aerobes. Mycobacteria infect mononuclear phagocytes. Mycobacteria are…

Q: Cellular immunity develops from a single stem cell called the multipotent hematopoietic stem cell.…

A: Together, innate and adaptive immunity offer complete defense against a variety of health risks to…

Q: The process by which a B cell with the appropriate antibody selection antibiotic deletion clonal…

A: When an antigen reacts with specific receptors and B and T cell and allow to divide continuously in…

Q: Which of the following steps are part of the processing of antigen by immune cells? Select all that…

A: Answer. The events involved in the generation of peptide fragments from proteins inside cells, the…

Q: What type of molecules are produced by pathogens and stimulate an unregulated T cell activation in…

A: Pathogenicity represents a specialization in a certain microorganism to replicate and damage host…

Q: What distinguishes constitutive resistance from an induced response?  What is the difference between…

A: Defense against an infectious pathogen is a complex mechanism that includes both constitutive…

Q: The complement system can be directly activated by: macromolecules present on bacterial cells…

A: Introduction  The complement system, also referred to as the complement cascade, is a component of…

Q: A mouse is infected with staphylococcal bacteria through a laceration in the skin of its paw.…

A: Dendritic cells are important immune system regulators. They act as a bridge between the innate and…

Q: y knocking out the following enes: ion of classical pathway C3 convertase ion of alternative pathway…

A: complement system refers to a series of more than 20 proteins circulating in blood and tissue…

Q: Write T if the statement is correct; write F if the statement is not correct. P and E selectins are…

A:

Q: Why is the response to T-independent antigens important medically?

A: Importance of T independent antigen medically -- T cells  -- These are type of lymphocyte ,White…

Q: Which of the following statements are TRUE about the process of inflammation? (Select all that…

A: Inflammation refers to the  body's process of fighting against infections, injuries, and toxins, in…

Q: The figure below shows the primary and secondary immune responses to an antigen. Which of the…

A: Immune system is a defensive system that works as a shield and form immunity for body and protect…

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: For a vaccine to produce useful protection against an infection, which of the following must a…

A: The immune action in the human body is performed by the production of antibodies, the Y-shaped…

Q: Antibodies can bind specific antigens on ___, allowing for ___ by phagocytes like ___. Group of…

A: the correct answer is in next step.

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: Mr. Conti died from a smallpox infection. The graphs (pictured) illustrate Anne's immune response…

A: Approach to solving the question:Anne's Response to Immunity (Survived):a rise in antibodies that…