During the adaptive immune response, the role of helper T cells includes _____. Mark all that apply. Group of answer choices a. using CD8 to identify cells that are infected with pathogens b. facilitating clonal selection c. using CD4 to recognize antigen presenting cells d. activating mitosis in B cells e. auto-activation of mitosis (self-activating mitosis to produce more helper T and memory T cells) f.using T cell receptors to bind epitopes on pathogens

Q: Which of the following regions may change due to somatic hypermutation of the DNA in a mature B cell…

A: Somatic hypermutation is a process that occurs in mature B cells during antigen activation, in which…

Q: Which of the following statements about innate lymphoid cells is true? (ONE ANSWER)   Require the…

A: Innate lymphoid cells (ILCs) are immune cells that lack a specific antigen receptor but can produce…

Q: What stimulates T-cell lymphocytes to undergo clonal selection?

A: Acquired immunity develops after birth. It is formed by B and T lymphocytes. B lymphocytes provide…

Q: b Production of complement c. Production of IL-6 d. Production of CRP e. All of the above 41. NK…

A: Hey, since there are multiple questions posted, we will answer first two questions (41 and 42). If…

Q: Identify the function of the Purkinje fibres. Select one: O a. O b. O c. O d. act as a pacemaker and…

A: The conducting system of heart consists of SA node, AV node, Right and left AV bundles, purkinje…

Q: Which of the following statements is INCORRECT regarding memory B cells? a. Memory B cells express…

A: B cells are a part of adaptive immune response. B cells have B cell receptors (BCRs) on their…

Q: 28. The molecules mediating signal transduction on a B-cell following antigen binding to BCR are…

A: B cell It is a type of lymphocyte which is involved in providing the humoral immunity component of…

Q: The reason why therapeutic anti-IgE is able to suppress allergic responses is that _____. a.…

A: The immune system is what protects your body from sicknesses and infections. It's the real system…

Q: Which of the following interactions will NOT provoke an immune response?     A. Endogenous antigen +…

A: Ans - d) Endogenous antigen + MHC Class I + BCR, will not provoke an immune response. The two types…

Q: All of the following are examples of how tumors or the microenvironment in which they develop…

A: Tumor cells are able to stimulate specific adaptive immune responses. However, most frequently these…

Q: 10. NK cells recognize and kill abnormal host cells that are: A. opsonized with IgE. B. lacking…

A: According to bartleby expert guidelines, when multiple questions are posted we are allowed to answer…

Q: The major inflammatory mediator released by degranulating mast cells in type I hypersensitivity is…

A: The body's defence mechanism against allergens, autoimmunity, and venom is hypersensitivity. Pollen,…

Q: A. vagina B. trachea and bronchi C. skin D. stomach E. mouth select A B C D E 1. villi pushing…

A: 1) vagina - low pH , antibodies and secretions  2) trachea and bronchi - villi pushing material…

Q: Linked recognition is best described as _____. a. the delivery of the co-stimulatory signal by…

A: Humoral immunity involves the activation of lymphocytes (B and T lymphocytes) to provide defence…

Q: A patient has contracted an upper respiratory infection caused by a virus. Her initial adaptive…

A: Immunity is the body’s ability to resist and eliminate the potential harmful foreign invaders to…

Q: and T cells are activated by B cells are activated by a. soluble, intact antigens; antigen fragments…

A: 23. Option A is correct i.e, soluble, intact antigens; antigen fragments displayed on the surfaces…

Q: All of the following occur after B cells leave the bone marrow except a. peripheral tolerance b.…

A: The lymphoid cell production and maturation follow the transition from primary to secondary lymphoid…

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: Dysfunctional repair of DNA double strand breaks often results in SCID because: thoose all that…

A: SCID stands for severe combined immunodeficiency disease.SCID is caused by adenosine deaminase (ADA)…

Q: Which of the following processes is not involved in central tolerance? Select one: A. Receptor…

A: Please follow step 2 for detailed explanation.

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: When an immature dendritic cell becomes an activated dendritic cell, all of the following changes…

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

Q: Match the antibody class to its correct description. Select the INCORRECT choice. a. IgE / the…

A: Immune system protects the body against foreign antigens and pathogens. Antibodies are proteins…

Q: Put a case forward for the importance of antigen specific CD4+ T helper cells, relative to other T…

A: T cells get their name from the fact that they are mostly developed in the thymus. They recognise…

Q: 1. In central tolerance, 3 mechanisms deviate B cells away from making autoreactive antibody. Which…

A: These are multiple choice questions.

Q: When endogenous antigens "blend in"( i.e establish a presence on the cell membrane) between the…

A: An antigen is a molecule that stimulates the production of an antibody to generate an immune…

Q: Match the term in Column A with its correct description in Column B.

A: Negative selection destroys thymocytes with a great affinity for self-peptides or MHC. This…

Q: The primary role of complement control proteins that operate in the early stages of complement…

A: In response to antigenic stimulation, antibodies are produced which are immunoglobulins. The…

Q: 16. Which cell type assist and interact with both humoral and cell-mediated immunity? A. Macrophages…

A: 16) Helper T cells  along with B cells differentiate into plasma B cells which produces antibodies…

Q: Which statement about B-cell receptors (BCR) is true?

A: The immune system of the body is the system that is responsible for providing protection to the body…

Q: During the secondary immune response, in the serum you would expect a. to find a greater…

A: Introduction The secondary immune response occurs on repeated antigen exposures, with a stronger…

Q: Generally, in healthy individuals and in the absence of infection, a mature naive T cell that…

A: T cells are among the immune system's most essential white blood cells that play a key part in…

Q: Helper T cells do not _________. Select one: a. secrete cytokines that stimulate clonal selection…

A: The question is asking us to identify the function that Helper T cells do not perform.

Q: How may B cells be activated? Select all that apply. Select one or more: a. Crosslinking of BCRS and…

A: How may B cells be activated?

Q: A 41-year-old man has a penetrating injury to his right eye. A month later he has worsening vision…

A: Sympathetic ophthalmia (SO) is a bilateral diffuse granulomatous intraocular inflammation that…

Q: body: a. Active Artificial Acquired Immunity b. Passive Natural Acquired Immunity 17. · type of…

A: Question is related to immunology Solution given below Question no.18 and 19 are re-post separately

Q: Memory T cells _____. (Select all that apply.) a. must all be activated in secondary lymphoid…

A: Memory T cells are antigen-specific T cells that remain long-term after an infection has been…

Q: All of the following contribute to the establishment and maintenance of long-lived memory B cells…

A: B cells are lymphocytes which are important for the adaptive immune system's humoral defense…

Q: Type I (immediate) hypersensitivity A. is mediated by IgE B. is mediated by T lymphocytes…

A: Hypersensitivity refers to undesirable reactions produced by the normal immune system including…

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…

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.