What is the function of a helper T cell? OA. to destroy cells that are already infected OB. to produce antibodies that attack specific antigens OC. to identify antigens that have previously attacked the body OD. to provide instructions to B cells and T cells

Q: Which of these would be a first line of defense against microbial infection?

A: Ans : Our immune system has three lines of defense to fight against microbial infection. Those are :…

Q: What must happen in order for a donor organ to not be rejected by the recipient? The MHC complexes…

A: Transplantation is done with the heart, spleen, liver, blood vessels, eyes, and tissues from one…

Q: Helper T cells that have been activated   a Can activate macrophages b Can stimulate cytotoxic T…

A: The major histocompatibility complex, abbreviated as MHC, is a set or group of glycoproteins that…

Q: Describe three ways in which B cells and T cells are similar and at least fi ve major ways in which…

A: The immune system of the body protects the individual from the attack of external pathogens. The…

Q: Question 9 Which structures both capture incoming microorganisms of the mouth and help develop…

A: Immune system defends body against foreign invaders. These include bacteria, viruses, and fungus, as…

Q: After a B-cell antibody binds to its antigen, what happens next? O antigen/antibody complex is…

A: Immunity is a phenomenon that builds up inside the body of organism in order to eradicate foreign…

Q: How does HIV establish a chronic infection?    A HIV attacks macrophages   B HIV stimulates a…

A: Human Immunodeficiency Virus (HIV) is a lentivirus that attacks & destroys CD4 T cells which are…

Q: Which feature is NOT associated with innate lymphoid cells (ILCS) as compared to adaptive immune…

A: lack t cell receptor (TCR)

Q: You encounter a patient who can't seem to fight off infections that normal patients can. You suspect…

A: Cytokines are tiny proteins secreted by cells that have direct influences on cell communication.…

Q: Arrange the following events during the development of adaptive immune response in the order they…

A: Adaptive immune response It is also referred as the acquired immune response. It constitutes…

Q: Antibody production takes place ina. T cells.b. natural killer cells.c. B cells.d. mast cells.

A: Immunology is the branch of science which deals with the study of the immune system, immune response…

Q: _______immunity is provided by B cells and their daughter cells, called_______ , which secrete…

A: The body is exposed to many infectious agents always, so all bodies of organisms have their own…

Q: Which of these participates in costimulation? a. cytokinesb. complementc. antibodiesd. histaminee.…

A: Introduction: A signaling pathway responsible for producing a response from the B and T-lymphocytes…

Q: 15. cytokines signal B & T cell production _16. macrophage presents antigen to the matching receptor…

A: The immune response is the body's way of recognising and defending itself against bacteria, viruses,…

Q: lacks the ability to remember a pathogen or react differently to it in the future, whereas uses…

A: introduction: the body's defence mechanism against an infectious disease is the immune system. The…

Q: A major outcome in response to the is the production of O complement cascade activation; a MAC in…

A: It is a complex biological system endowed with the capacity to recognize and tolerate whatever is…

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 "skin test" is diagnostic for tuberculosis. What is the principle behind this test? O…

A: Tuberculosis is a very common disease that is caused due to the infection of bacteria Mycobacterium…

Q: Cytotoxic T cells

A: A shorter reaction time with more antibody produced

Q: Neutrophis are not able to present antigens to CD4 T celis even though they are phagorytic bncause…

A: We are supposed to answer one question according to our guidelines. Please repost other questions…

Q: Type II hypersensitivities are due toa. IgE reacting with mast cellsb. activation of cytotoxic T…

A: Normal immune system produces undesirable reactions such as allergies and autoimmunity and this is…

Q: Which of the following is a function of the secondary lymphaticorgans?a. transport of lymphb. clonal…

A: Answer- Our immune system is composed of primary and secondary lymphoid organs.

Q: Which of the following is expressed on B cells and increases their ability to respond to antigen?…

A: B cells are white blood cells that play an important role in the immune response. When they come…

Q: 23. Cytotoxic T cells cells and produce O opsonize, cytokines O burst, histamine O crenate,…

A:

Q: What else can be done, in order to eliminate bacterial cells inside an organism, if phagocytosis…

A: Bacteria are microscopic, single-celled organisms found in abundance in all environments, both…

Q: Which are with Helper T-cells

A: Helper T-cells is a type of immune cell that stimulates killer T cells, macrophages, and B cells to…

Q: What do neutrophils do that macrophages also do? OA. antigen presentation O B. degranulate OC.…

A: Neutrophils are white blood cells which are found in great amount and it acts where the infection…

Q: Which of the following statements does not describe tolerogens accurately? Select one: A. They can…

A: Tolerogens are some substances that are related to the immune system. Immune system comprises…

Q: Which part of the immune system makes it unlikely for you to get chicken pox more than once? O a.…

A: Introduction :- The adaptive immune response is a complex defense mechanism of the body against…

Q: Describe how positive and negative selection leadsto a population of T cells that react to MHC…

A: Immune cells, especially T cells and B cells pass through a checkpoint of cell selection. This…

Q: need help

A: Disclaimer: As two  questions have been asked, we will answer the first question for you. If you…

Q: These white blood cells attack virus - infected cells in the body.     helper T cells…

A: WBC or white blood cells are an integral part of the immune system of the body. These cells enable…

Q: How does the immune Function when not Working normally interfere with human life

A: Immune system acts as a defence force in our body.

Q: explain in detail how a B cell gets activated (clonal selection and proliferation) How are T helper…

A: * Two types of immune response can be seen . They are primary response  Secondary response *…

Q: Cytotoxic T Cells kill: Bacteria that are free floating in the blood stream Natural Killer Cells O…

A: Immunology is the branch of science which deals with the component of immune system and its…

Q: Cytotoxic T Cells attack O pathogens, rapid growth and division O pathogens, apoptosis (cell death)…

A: Introduction Immunity is defined as the ability of the body to fight against the pathogens. There…

Q: How do activated B cells fight a current infection?

A: Cell mediated immunity: this type of immune response involves activation of helper and cytotoxic T…

Q: 15. cytokines signal B & T cell production 16. macrophage presents antigen to the matching receptor…

A: The immune responses are divided into two types: The humoral immune response and the cellular immune…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.