Which of the following cells would be most active in early, antiviral immune responses the first time one is exposed to pathogen?a. macrophageb. T cellc. neutrophild. natural killer cell

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: Humoral immunity is the part of the adaptive immune system involving: A.cytotoxic T cells killing…

A: The adaptive immune system is also known as acquired or specific immune system. It is a subset of…

Q: Define the following terms below. Write the description below.  immune response:

A: Immunity is provided by immune system. It is of two types -  1. Innate immunity - It is present…

Q: Mark the following statements as true or false. If a statement is false, correct is to make a true…

A: A)  true B) false,  secondary immunue response is controlled by T- cells

Q: Which of the following enzymes works best in an acidic environment? a. amylase. b. pepsin. c.…

A: Enzyme activity is estimated in units which demonstrate the pace of reaction catalyzed by that…

Q: How could you distinguish the type of T cell that is active in an immune response? In other words…

A: Macrophages are the first cell types to respond to infection. If a macrophage encounters a foreign…

Q: Describe how the immune system distinguishes foreign cells from cells deemed as self.

A: Our immune system is capable of protecting our body from foreign agents like germs, bacteria,…

Q: Which innate immune system component uses MHC class I molecules directly in its defense strategy? a.…

A: Innate immune system:                 The first line of defense that castles border for pathogen…

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: In what process is clonal selection important?a. Complement function c. Inflammationb. B cell…

A: Clonal selection is a process that explains how a single B or T cell that recognizes an antigen…

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: __________________ is a condition that results when cytotoxic T cells attack the body’s own cells.a.…

A: Cytotoxic T cells are T cell also known cytotoxic T lymphocytes that kills  virus-infected cells,…

Q: Which of these statements about T lymphocytes is false? a. Saome T cells promote the activity of B…

A: Lymphocytes are types of leukocytes. There are two types lymphocytes in immune system:…

Q: Which innate immune system component uses MHC I molecules directly in its defense strategy? a.…

A: The immune system consists of the adaptive and innate immune responses. Innate immunity is present…

Q: Which of these events is not a part of the second line of defense? You may have more than one…

A: Our body has mainly three line of defence. Defensing foreign substances is important to ensure good…

Q: Upon reexposure to a pathogen, a memory B cell can differentiate to which cell type? a. CTL b. naïve…

A: Second line defence or non-specific defence is primarily dependent upon Neutrophils, macrophages and…

Q: Receptors that trigger innate immune responses a. are antibodies recognizing specific antigens.…

A: The first line of defense against invading pathogens is the innate immune response. They are also…

Q: Which form of acquired immunity is the patient developing by having this infection?   A) Active…

A: Immunity is the ability of the body to fight against the  various microbes & defend the body.…

Q: Which of these cell types aids the activation of T lymphocytes by antigens? a. Macrophages b.…

A: The immune system of a body is broadly classified into innate and acquired type. Innate immunity is…

Q: A drug that were to inhibit the activity of T suppressor cells would lead to _______. a.…

A: Regulatory T cells (Tregs) also known as supressor t cell are a specialized subpopulation of T cells…

Q: in antibody-mediated immunity, what happens immediately after B cells are activated? a. the foreign…

A: The immune system of the body fights against foreign invaders and protect the body from infections.…

Q: What are the roles of the innate immune system? Select all that apply.   A. identity self vs.…

A: Pathogens are disease-causing organisms that can cause humans to become ill or die depending on the…

Q: One of the common characteristics of lymphocytes (1), neutrophils, and macrophages) the resulting…

A: In the human body, the resistance against the entry of any foreign particle or antigens is executed…

Q: Antibody-mediated immunitya. works best against intracellular antigens.b. regulates the activity of…

A: Antibody-mediated immunity: Antibody-mediated immunity is also referred as Humoral immunity which…

Q: Which are important in nonspecific immune defenses? a. interferons b. lymphocyte activation c.…

A: The immune system is an organ system of the body that is functionally responsible for protecting the…

Q: which of the following cells secrete cytokines that activate B cells, T cells, and macrophages? a. T…

A: The immune cells can be categorized into neutrophils, basophils, eosinophils, monocytes,…

Q: In an immune response, what is the main function of the circulatory system? * to send chemical…

A: Immune response is a reaction which occurs after the body recognizes an antigen and defend against…

Q: Which cells of the immune system secrete antibodies? A. Natural killer cells only B. T cells only C.…

A: The immune system helps prevent the entry of foreign substances into the body. The immune system…

Q: Which of the following leads to swelling seen in an inflammation? a. Vasodilation  b. Complement…

A: Swelling is the result of the increased movement of fluid and white blood cells into the injured…

Q: In a normal individual, a T cell that interacts with a self-antigen in the thymus will more than…

A: Introduction  Immunity is the property or ability of the body to defend against the pathogens.…

Q: The role of the humoral immune response is to a. kill infected cells b. fight pathogens found in…

A: The Humoral immune response is the response generated by the immune system against foreign pathogens…

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: ____________interferon, produced by T lymphocytes, activates cellscalled _____________ and is…

A: The immune system is a complex network of biological structures (cell) and protein that defends the…

Q: Virus-infected cells are detected and destroyed by which cells of the immune system? A)helper T…

A: C)-cytotoxic T cells

Q: Which of the following can serve as antigen-presenting cells (APCs)?a. T cells b. B cells c.…

A: Antigen-presenting cells (APC) include a diverse group of immune cells that mediate cellular immune…

Q: An essential property of the immune system is self-regulation. An immune response that is not…

A: Introduction A disorder in which your immune system wrongly targets your body is known as autoimmune…

Q: Which type of immune response works in concert withcytotoxic T cells against virally infected…

A: The immune system is a complex system of proteins and cells that protects the body against…

Q: Which of the following should be the same inidentical twins?(A) the set of antibodies produced(B)…

A: The term MHC denotes Major Histocompatibility complex molecule. This molecule is the host protein…

Q: In response to alerting cell activation, the B cell covers pathogens with ______________ to make…

A: In this question asked about immunity.  Detailed solution in step 2.

Q: Type of specific resistance that has been introduced to the body is already antibodies that provide…

A: A. Natural immunity:- It is a kind of immune response/immunity that the body develops on its own…

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

A: Solution mentioned below

Q: Naturally acquired active immunity would be most likely acquired through which of the following…

A: Acquired immunity is an immunity that is acquired during the life on exposure to environment. There…

Q: Which of the following statements is not true?(A) An antibody has more than one antigen-binding…

A: The ability of the body to defend itself against invading foreign agents like bacteria, viruses, or…

Q: Which leukocyte is responsible for managing the duration of an inflammatory response and triggering…

A: The inflammatory response is the cornerstone of the body's defense against virus, bacteria, toxins…

Q: Which of the following pairs is mismatched? a. plasma cell: mediation of phagocytosis and killing…

A: The immune system is a defense mechanism used by humans to protect the body from foreign invaders.…