What stimulates T-cell lymphocytes to undergo clonal selection?

Q: Which does NOT describe humoral immunity? Group of answer choices a. Antibodies are secreted by…

A: everyday we are exposed to large number of infectious agent post op however only a few of these…

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: Which of the following pairs is mismatched? a. activation of memory cells: secondary immune…

A: Explanation given for the mismatch pair.

Q: A macrophage phagocytizes an invading E. coli bacterium.  Select the type of MHC molecule that…

A: A macrophage is one of the cells of immune system which plays an important role in innate as well as…

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: 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: Ibuprofen dampens the immune system’s inflammation response.What might be a short-term consequence…

A: Ibuprofen is a type of NSAID, which is used for treating inflammation, fever, pain... It basically…

Q: A second exposure to a given foreign antigen elicits a rapid and pronounced immune response…

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

Q: Outline the process of B-cell activation against a T-dependent antigen.

A: B cells, also known as B lymphocytes, are a type of white blood cell of the small lymphocyte…

Q: What does the T-cell receptor on the helper T cell bind? free antigen in soluble form b. antigens…

A:

Q: Which of the following is not a function of T-helper cells: O A) It recognizes foreign fragments…

A: T cells or T-helper provide help to another cell in the immune response by recognizing foreign…

Q: Which of the following lists contains cells that are typically considered to be associated with the…

A: Immunity can be defined as the capacity of the body to fight against the pathogens attacking the…

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

A: Introduction: The proteins that are produced in response to an antigen are called antibodies. It is…

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: Cytotoxic T cells express which of the following proteins on their cell surface? (Select all that…

A: T cells or T-lymphocytes are the immune cells. These cells are the type of white blood cells that…

Q: Compare and contrast the process of antigen recognition in T cells and B

A: Immunity is the capability of multicellular organic entities to resist hurtful microorganisms.…

Q: Which statement describes a limitation of T-cell receptors (TCRs) compared to B-cell receptors…

A: TCRs (T-cell receptors) are protein complexes that are found on the surface of every T-cell. It is…

Q: All of the following are characteristic of regulatory T cells except a. they express CD25 b.…

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

Q: An adult who has been thymectomized will have a T-cell repertoire that _____. a. resembles a…

A: The answer is described in the next step:-

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: 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: Which of the following is false about HLA class I molecules? A. They are encoded by multiple and…

A: INTRODUCTION HLA Human leukocyte antigen, when a cell is infected with virus or any harmful agent…

Q: Which of these is a valid example of an antigen and its corresponding epitope? Select one: a. An…

A: Antigen  is any substance that causes body's immune system to produce antibodies against it .

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: Describe a mechanism by which an antigen can enter the lymph node and make contact with the B-cell…

A: The response of B-cell includes two events that take place in different regions and at different…

Q: Which of the following explains why dendritic cells, but not macrophages or B cells, contribute to…

A: The immune system provides the body with the ability to prevent diseases or infections in the body.…

Q: How is the cytotoxic T cell mechanism of action similar to that of complement? A. Cytotoxic T cells…

A: To neutralize antigen three possible ways are there: - Phagocytosis - ADCC (Antibody-dependent…

Q: The T cell response follows the antibody-mediated B cell immunity.  What is the connection between…

A: SARS Cov 2 is the virus which cause Corona infections . The body have its own mechanism to fight…

Q: Adaptive immunity includes both humoral and cell-mediated immune responses, which interact but also…

A: The white blood cells (WBC) in our body are responsible for giving immunological protection.…

Q: Which event happens first during cytotoxic T-cell activation?

A: INTRODUCTION;-  The activation of cytotoxic T cell is dependent on several simultaneous interactions…

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 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: All of the following are true in reference to T-cell priming except _____. a. it occurs in primary…

A: The immune system of the human body consists of white blood cells, antibodies, spleen, thymus, and…

Q: Select the correct one. In antibody-mediated immunity, what happens immediately after B cells are…

A: The antibody-mediated immunity involves the activation of T-helper cells that interacts with B cell…

Q: Which statement describes a limitation of T-cell receptors (TCRs) compared to B-cell receptors…

A: Membrane-bound immunoglobulin on the B-cell surface serves as the cell's receptor for antigen and is…

Q: Chronic granulomatous disease Select one: A. is caused by a decrease in the number of phagocytes.…

A: Immunodeficiency occurs due to hereditary defects are called primary immunodeficiency and when…

Q: Unlike cytotoxic T lymphocytes, NK cells do not _____. (Select all that apply.) a. secrete…

A: Natural killer (NK) cells are lymphocyte that descend from the very same progenitor as T and B…

Q: There is a second, delayed spike of IgM in the secondary response. Why might this be…

A: The primary immune response occurs when an antigen comes in contact with the immune system for the…

Q: Homing of effector T cells to inflamed tissue is facilitated by the upregulation of _____ on the…

A: Answer : Option (a) VLA -4 Homing of effector T cells to inflamed tissue is facilitated by the…

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.…

Q: How is clonal selection related to the vast number of possible B and T-cell receptor binding…

A: Answer : While a antigen enters the body it's far processed and displayed by way of mhc complex.…

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.