Which of the following statements about interferons is false? a. Interferons produced by virus-infected rabbit cells cannot be used to treat viral diseases in humans. b. Interferons have been used to treat hepatitis C and certain types of cancer.

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: will involve the secretion of which will induce intracellular microbial The activation of killing a.…

A: Cytotoxic T-cells,INF-gamma  Hence option (d) is correct . EXPLAINATION:- cytotoxic T cells kill…

Q: A T lymphocyte activated in the GALT will subsequently home to all of the following except _____.…

A: Gut associated lymphocyte tissue or GALT complex function is to form as a protective immune system…

Q: This chemical is released by virus-infected cells to decrease the spread of virus to nearby cells.…

A: Virus-infected cells release certain chemicals that work as immunity protection against viruses. 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: The binding groove of endothelial protein C receptor (EPCR) binds to _____ and presents them to…

A: In humans, a protein that is encoded by the PROCR gene, is known as Endothelial protein C receptor.…

Q: are released by helper T cells to mobilize immune cells and macrophages and attract other leukocytes…

A: Helper T cells are the T lymphocytes that activate the cytotoxic T cells and B cells.

Q: A number of minor cancerous cells and infected viruses, such as Epstein Barr (EBV), are able to go…

A: Cytotoxic T cells or cytotoxic T lymphocytes are the type of T lymphocytes that plays a role in…

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: The third line of defense includes: a. inflammation b. stomach’s digestive acid c. phagocytes d. MHC…

A: Answer is d.)  MHC proteins.

Q: Systemic distribution of TNF-α in the blood circulation may cause _____. a. respiratory burst b.…

A: Tumor Necrosis Factor alpha (TNF alpha), is an inflammatory cytokine produced by…

Q: The three major pathways of complement activation use different molecules and mechanisms to initiate…

A: Complement-mediated immune response:  The complement system of the body which is a part of the…

Q: Immune responses tailored to specific antigens involvea. T cells.b. macrophages.c. monocytes.d.…

A: Immunity can be defined as the ability of an organism to fight against infections caused by a…

Q: Which of these offers a nonspecific defense against viral infection? a. Antibodies b. Leukotrienes…

A: There are some living organisms that cannot be observed by the naked eye and only can be seen under…

Q: Deficiencies in complement components C1–C4 are associated with _____. a. neutropenia b. chronic…

A: Deficiencies in complement components C1 - C4 are associated with immune - complex disease .…

Q: Which of the following is a function of the thymus?a. production of red blood cellsb. secretion of…

A: Answer: Introduction: Primary lymphoid organs – Primary lymphoid organs are including thymus, Bursa…

Q: match the cytokine with its description. 1.Interleukin-1 2.Interleukin-2 3.Interleukin-12   a.…

A: Interleukins (IL) are chemical substances that play a vital role in varied rules of the immune…

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 of these statements about gamma interferon is false? a. It is a polypeptide autocrine…

A: The interferon gamma is a dimerized soluble cytokine that is the only member of type II class of…

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: Which of the following statements regarding intraepithelial lymphocytes is false? (Select all that…

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

Q: Which of the following drug clasification is responsible to liquify/break down mucus in order to aid…

A: It is important for a nurse to know the different classes of drugs and their actions as well as side…

Q: Which of the following is not correct concerning interferon?a. Interferon is a protective protein.b.…

A: Answer- Interferons are the proteins that are secreted from the viral infected cells.

Q: A young woman was in a car accident and had to have her spleen removed as a consequence of its…

A: The spleen is a secondary lymphoid organ. It is also referred to as an enlarged lymph node. Spleen…

Q: which two of following statements are true for an antigen prsent cell such as dendritic cell? a.…

A: Answer :- Antigen-presenting cells (APCs) play a crucial role in the immune system by initiating and…

Q: The respiratory burst is used by tokill bacteria.a. neutrophilsb. basophilsc. mast cellsd. NK…

A: Respiratory burst (additionally called oxidative burst) is the rapid release of responsive oxygen…

Q: may destroy infected cells. Select one: a. Phagocytic cells b. Natural killer T cells C. Cytotoxic T…

A: Pathogens are disease-causing microorganisms that upon entering a healthy body cause a variety of…

Q: Indicate to which branch(es) of the immune system the following statements apply, using H for the…

A: The human body may aim its defense against dangerous agents including bacteria, viruses, and poisons…

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: When a helper T cell releases interleukin-1 to stimulate surrounding leukocytes, interleukin-1 is…

A: Several organs and processes of the body, which provide defiances from infection and toxins. The…

Q: Inflammatory cytokines a. act as opsonins. Ob. are produced only by phagocytic cells. c. facilitate…

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

Q: Which of the following is part of the second line of defense? a. Interferons b. Phagocytes c.…

A: The immune system shows immune response in three stages the first line of defence includes the…

Q: Which of these statements best describes the purpose of inflammation?

A: Body response to a specific place Against the alien particle is said to inflammation

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: Why HIV doesn’t naturally induce a strong CD8+ T cell response

A: HIV or the Human Immuno Deficiency Virus attacks the body's ability to fight infectious diseases…

Q: A deficiency of both B cells and T cells is most likely a(n). a. secondary immunodeficiency b.…

A: Immunodeficiency is defined as the host's inability to defend against invading pathogens due to a…

Q: B cells proliferate and differentiate into plasma cells and memory cells in the ______________ of…

A: INTRODUCTION Secondary lymphoid organ This include spleen, lymph node and payers patches.

Q: Select the incorrect statement regarding the temperature of the immune system. A. Interleukin-1 is…

A: Introduction  The immune system refers to the body's defence processes that produce immunological…

Q: Choose the correct one. Which cells produce antibodies? a. Neutrophils. b. Dendritic cells. c.…

A: We know that neutrophils are responsible for secreting cytokines during tissue injury. Hence, Option…

Q: A B cells B. Peri-arteriolar lymphoid sheath e. Antigen-presenting cells, e.g., macrophages D.…

A: 17.Answer--- correct option is D        Vascular sinus

Q: Which of the following are pattern recognition receptors? A, receptors for interferons B. lymphocyte…

A: Various PRRs can be secreted by cells, and bind straightforwardly to invading micro organisms. A few…