Which of the following cell types is important innonspecific responses to infection?a. natural killer cellb. cytotoxic T cellc. B celld. regulatory T cell

Q: Explain why each choice (a-d) is correct or incorrect. In clonal selection of B cells, which…

A: B cell expresses receptors ,that are specific to distinct antigen,  is determined before…

Q: Cell-mediated immunity is carried out by………….. while humoral immunity is mainly carried out…

A: Immunity protects our bodies from various diseases and pathogens.  Immunity can be categorized into…

Q: Compare and contrast the activities of B cells versus T cells.

A: Introduction: The immune system is involved in protecting the human body from any invading pathogen.…

Q: For question with blanks, choose the combination of answers that most accurately completes the…

A: Introduction  Our immune system plays key role in defence against harmful foreign particles be it…

Q: Which one of the following acts as the “alarm signal” to activate the body’s adaptive immune system…

A: BASIC INFORMATION IMMUNE SYSTEM  It defends our body from the foreign particles which can cause…

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: Which of the following is a critical feature ofimmediate hypersensitivity?a. inflammationb.…

A: Immediate hypersensitivity or type I hypersensitivity response is the binding of allergen-specific…

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: Mention the site in the body where the B-cells and T-cells are formed. Give one difference between…

A: Introduction: The immune system is involved in protecting the human body from any invading pathogen.…

Q: Why is the secondary immune response so much stronger than theprimary response?a. Because high…

A: Answer is c.)  because memory B cells can rapidly convert to plasma cells.

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: .

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

Q: The four characteristics of adaptive immunity include all of the following except a. activation by a…

A: The immune system has a vital role in protecting the body from outside pathogens (bacteria, viruses,…

Q: An example of innate immune cells are: A. Macrophages B. Dendritic cells C. T cells D. B cells…

A:

Q: Which of the following immune cells/molecules are most ef-fective at destroying intracellular…

A: Answer is c.)  TC cells.

Q: Molecules that label your cells as “self” area. antibodies.b. T-cell receptors.c. major…

A: The immune system of a healthy individual possess an ability to differentiate between the self 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: The innate immune response is characterized by itsa. rapid response to invading pathogens.b. ability…

A: Immunity is the capability of the body to fight against foreign attack and maintain the persistence…

Q: . Cell-mediated immunity is carried out by ________, whilehumoral immunity is mainly carried out…

A: The correct option is B  T cells/B cells

Q: Which statement best describes the difference between responses of effector B cells (plasma cells)…

A: Immunology is a section of biology that includes the study of molecules, cells, and organs that…

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: 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: What types of cells could be involved in specific immune reactionsagainst the rabies virus?a. T…

A: Viruses are microscopic parasites, typically much smaller than bacteria. They lack the ability to…

Q: Which of the following does not pertain to B cells?a. have passed through the thymusb. have specific…

A: Immune system comprises innate and acquired immunity. Innate immunity consists of a physical barrier…

Q: To become a fully activated, antibody-secreting cell, B cells usually need: a. to encounter an…

A:

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: The body's innate defenses against invading pathogens include a. cytotoxic T cells. b. skin and…

A: Immune system  of the body helps us to fight against invading pathogens . They kills or inhibit the…

Q: These two cells destroy an infected cell by releasing chemicals that cause apoptosis. a. NK cell and…

A: A series of certain molecular reactions might cause the death of a biological cell. This phenomenon…

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: Which type of T cell is most effective against viruses?a. Th1b. Th2c. cytotoxic T cellsd. regulatory…

A: Viruses are dead organisms which enter in the body of host and attack the immune system. Viruses…

Q: Define the following terms:a. T cellsb. B cellsc. cellular immunityd. humoral immunitye.…

A: Step 1 Hello. Since you have asked multiple questions, we will solve the first question for you. If…

Q: Which of the following is not a function of antibodies? Select one: a. They neutralize pathogens by…

A: The immune system uses antibodies, often referred to as immunoglobulins, to recognize and destroy…

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 of the following pairs is mismatched? a. T-cell activation: cell division and…

A: T-cells are white blood cells that take part in the cell-mediated immune response. T-cells are part…

Q: MHCII molecules will bind __________ and locate to the cell surface. a. T-independent type antigens…

A: T cells are not able to recognize free antigens directly. They can recognise only antigens that are…

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…

Q: Which of the following cells are primarily targeted by HIV? a. Nerve cells. b. Helper T celIs. c.…

A: HIV targets the immune system. It takes around one to two days to arrive at lymph nodes then these…

Q: List 3 things that helper T cells do:

A: Thymus is the site where T-lymphocytes get mature. T-lymphocytes arises in bone marrow. when t-cells…

Q: Which of the following describes the developmental pathway for T cells? a. thymus → bone marrow →…

A: A type of leukocyte that plays an important role in the immune system refers to the T cell. T cells,…

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: Which of the following cell types is unable to interact with naive T cells and induce their…

A: Those cells of the immune system that target specific antigens are T cells. The origin of these…

Q: D a Which of the following is considered an innate immunity: ● Production of antibodies via B…

A: Immunity is defined as a complex biological system with the ability to recognise and tolerate what…

Q: Which of the following are examples of innate immune responses? Select all that apply.   Fever   Gum…

A: Innate immune response is present since birth and consist of many factors that are relatively…

Q: An individual wit a mutation in their RAG gene in their B cells would still be able to produce which…

A: Introduction:- Type 1 hypersensitivity reaction is immediate immune response. Type 2 is antibody…

Q: lain the reason that T-cells are so critical in recognizing and destroying virally-infected host…

A: When an antigen is phagocytized and harmful antigens are presented on the cell membrane of the…

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: T cells that react with self antigens are destroyed through: A. cytokinesis b. macrophages c.…

A: The T cells are one of two lymphocytes and play an important role in the immune system. B-cells are…

Q: The first line of defense against pathogens includes a. NK cells. b. stomach PH. c. phagocytes. d.…

A: The first line of defense against pathogens Answer : b Stomach pH The first line of defense…

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.