Which of the following is NOT true about T cells?(a) T cells develop from lymphoid stem cells in the bonemarrow and mature in the thymus.(b) Cell-mediated immunity is primarily carried out by Tcells.(c) Subsequent differentiation of T cells produces cytotoxic(killer) T cells, delayed-hypersensitivity T cells, helper Tcells, and regulatory T cells.(d) Natural killer cells (NK) are exclusively differentiated Tcells.(e) T cells act in situations where antigens are embeddedin cell membranes or are inside host cells and thus areinaccessible to antibodies.

Q: Which type of T-cell activates a dendritic cell to greater killing power in the presence of an…

A: A T cell is a type of lymphocyte, which develops in the thymus gland (hence the name) and plays a…

Q: What are the components of innate immunity?

A: The innate immune system comprises of the barriers that aids to keep viruses, bacteria and other…

Q: What activates a Helper T-cell?

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: Describe the cooperative interactions between antigen-presentingcells, T cells, and B cells.

A: When a positive change done for one component increases the collectively benefits of a group of…

Q: What is the two types of cells that result from activation of B and T cells?

A: Introduction: - The T and B lymphocytes (T and B Cells) are involved in antigen-specific immune…

Q: How do T cells recognize their targets?

A: T cell, are types of white blood cells, essential for the immune system. T cells originate in the…

Q: What molecule ensures that T-lymphocytes which encounter their antigen in the lymph node stay there…

A: T cell is a type of lymphocyte.T cells are one of the important white blood cells of the immune…

Q: How do T cells reach the CNS of healthy individuals?

A: Question -  How do T cells reach the CNS of healthy individuals?

Q: What is Helper T cells?

A: Step 1 The immune system has two types of about trillion lymphocyte cells, called B-lymphocytes and…

Q: What are the roles of helper T cells?

A: Majority of the lymphocytes circulating in the blood are made up of T lymphocytes involved in the…

Q: When is antigen processing an essential prerequisite for an immune response?

A: Antigen processing,  is an immunological process that prepares antigens to be identified by special…

Q: In addition to cells infected by microbes, what other types of target cells are attacked by…

A: Lymphocytes are the types of WBC (white blood cells) that are located in the immune system of the…

Q: Which subtype of T cells is destroyed by the HIV virus?

A: HIV or the human immunodeficiency viruses is a type of Lentivirus (a subgroup of the retrovirus,…

Q: Where do B cells acquire immunocompetence? Where do T cells do so?

A: B -cells acquire immunocompetence in Bone Marrow and T-cells acquire immunocompetence in Thymus.

Q: Are there other examples besides immune secretions in which a single substance may act as both an…

A: Immune cells secrete the secretions that protect body from immunity. In body three types of glands…

Q: . If a child were born without a thymus gland, what cellsand functions of the immune system would be…

A: The thymus is a lymphoid organ. It is present in the chest of an organism. T cells develop in the…

Q: Distinguish among the various types of lymphocytes, including helper T cells, cytotoxic T cells,…

A: Lymphocytes are also called white blood cells that are also one of the body's main types of immune…

Q: What is the role of helper T-cells ?

A: In immunology, the term helper T cell, which is also known as the CD4-positive cell, is used to…

Q: What is meant by 'B lymphocytes are sensitive to clonal deletion'?

A: Immunity

Q: What is the difference between a T-cell-dependent and T-cell- independent response?

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

Q: How might antibodies be used to activate B cells?

A: B cells also known as B lymphocytes are type of white blood cells and functions in humoral immunity…

Q: What is an antigen-presenting cell? By which mechanism do the “present” antigens?

A: Antigen-presenting cells (APCs) are essential for the initiation and maintenance of adaptive immune…

Q: Explain why the B cells response is described as “humoral”, but the T cell’s response is described…

A: Both B cells and T cells are lymphocytes that are gotten from explicit sorts of foundational…

Q: How do cytotoxic T cells destroy cells bearing foreign antigens?

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

Q: What happens to individuals with defects in regulatory T cells (Treg)?

A: The immune system protects our body from infections caused by foreign molecules. It is so efficient…

Q: What is the difference between T cells and B cells?

A: Immune cells are the defense cells that protect the body from infective agents. The cells of the…

Q: What problems would arise if a person had a hereditary deficiency that resulted in an inability to…

A: Malnutrition is the key component which cause immunodeficiency. It occur when one or more…

Q: List the CD4+T lymphocytes lineages? What determines CD4+ T lymphocyte differentiation? Which…

A: CD4+ T cells play a crucial role in adaptive immunity because they support both cytotoxic T cell and…

Q: What is involved in the four categories of B-cell and T-cell mediated hypersensitivities?

A: There are four states of hypersensitivity. State I is characterized by immediate allergies that are…

Q: In the process shown in Diagram 2, what performs the function most similar to that of the activated…

A: Humans have a well-developed immune system to fight the foreign particles entering our bodies. There…

Q: If you had to choose between losing function of your B or T cells, which would you choose, and why?

A: INTRODUCTION B cells Type of lymphocytes that are responsible for humoral immunity. T cell This is a…

Q: Compare and contrast T and B cells

A: The T cells are referred to as thymus cells and B cells are referred to as bone marrow (mammals) or…

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: Must an antigen-presenting cell (dendritic cell, macrophage) be infected with a virus to activate T…

A: There are found a variety of tissue types. Professional antigen-presenting cells, including…

Q: What are the different types of T cells, and what function does each have?

A: Introduction :- T cells are produced by stem cells in the bone marrow and are a component of the…

Q: Identify the process shown in Diagram 2 . What is the function of the T cell in this process?

A: B cells mediates antigen-specific immunoglobulin production to fight against  pathogens.

Q: How does a cytotoxic T cell (or NKcell) avoid being killed by the perforinand granzymes that it…

A: A kind of immune cell which has the ability to kill specific cells, such as foreign cells, cancer…

Q: Describe the T cell response?

A: T cell responses are an important part of the immune system. T cells get activated when antigen is…

Q: Which type of T cell participates in both cell-mediated and antibody-mediated immune responses?

A: Acquired immunity, is capable of recognizing, selecting and eliminating specific foreign antigens.…

Q: What is the role of antigen-presenting cells and TH cells in triggering/activating adaptive…

A: What is the role of antigen-presenting cells and TH cells in triggering/activating adaptive…

Q: How can an extracellular bacterium and an intracellular virus independently be targeted by a…

A: Cytotoxic T cells and Helper T cells  provide protection against differen types of pathoges.…

Q: How much times does it take for the naive T cell to get activated?

A: The subgroup of memory T cells and effector precursor is called naive T cells. In the bone marrow,…

Q: What kind of symptoms accompany B-cell defects, T-cell defects,and combined defects, and why is this…

A: Primary diseases are congenital and generally originating due to errors in genetic makeup. The…