Which hypersensitivities are T-cell mediated?a. type I b. type II c. type IIId. type IV

Q: Which statement is true of autoimmunity? a. It involves misshapen antibodies. b. It refers to…

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

Q: Vaccines are biological preparations that establishes or improves immunity to a particular disease.…

A: Vaccines are biological preparation that provides acquired immunity. It mainly used to treat…

Q: The elimination of self-reactive thymocytes is called________.a. positive selection.b. negative…

A: The T-cells of the adaptive immune system plays a crucial role in protecting the body from foreign…

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: Which cells would make the antibodies to help the body fight off SLE? O Cytotoxic T-Cells Natural…

A: SLE is an autoimmune disorder in which immune system attack self cells.  Cytotoxic T cells and…

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: Which characteristic is associated with passive artificial immunity?a. long-term protection duration…

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

Q: Match to its function. v helps T cells mature A. tonsils v cleanses the blood B. thymus C. lymph…

A: Precursors of T cells migrate from the bone marrow and mature in Thymus Spleen is used to filter the…

Q: Monocytes are ____________- leukocytes that develop into _________- .a. granular, phagocytes b.…

A: Monocytes are a type of leukocytes with amoeboid appearance and a unilobar nuclei. They constitute…

Q: An example of innate immune cells are: A. Macrophages B. Dendritic cells C. T cells D. B cells…

A:

Q: Which statement is incorrect regarding Type IV Hypersensitivity? O A) T-helper cells are activated…

A: Contact dermatitis takes place when the skin comes in contact with an allergen directly. It results…

Q: What is the main reason for the steady decline in T cells over time

A: Human Immunodeficiency Virus infections affect the immune system thereby directly affecting the…

Q: Which event happens last in a humoral immune response? 1) CD4 T cell activation 2) presentation of…

A: The correct option is (d) the production of antibodies.

Q: What causes the delay in delayed hypersensitivity?a. inflammation b. cytokine releasec. recruitment…

A: Hypersensitivity involves the higher immune response towards an antigen or antibody. It is of four…

Q: HIV causes immunodeficiency by attackinga. memory B cells. c. plasma cells.b. helper T cells. d.…

A: HIV or Human Immunodeficiency Viruses are types of Lentivirus that infect Humans. Here we will see…

Q: Which statement best describes the difference between responses of effector B cells (plasma cells)…

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

Q: Upon reexposure to a pathogen, a memory B cell can differentiate to which cell type? a. CTL b. naïve…

A: Second line defence or non-specific defence is primarily dependent upon Neutrophils, macrophages and…

Q: ____________ are suspensions of killed or live germs which is employed to induce the production of…

A: Among the given options, option (a) is the most appropriate.It explains that the vaccines are…

Q: B lymphocytes holding knowledge of an infectious agent for future responses are called: a) helper…

A: Immune system acts as a defense system in our body by protecting from effects of pathogens and also…

Q: Which form of acquired immunity is the patient developing by having this infection?   A) Active…

A: Immunity is the ability of the body to fight against the  various microbes & defend the body.…

Q: Which condition is not an autoimmune disease?a. multiple sclerosis c. systemic lupus erythematosisb.…

A: The immune system is responsible for protecting the body from foreign pathogens. Immune system fight…

Q: A patient lacks the ability to make functioning T cells because of a genetic disorder. Would this…

A: T and B cells are major cells that bring about adaptive immune response in human body. T cells are…

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: which type of t-cells is specifically targeted by HIV

A: Human immunodeficiency virus (HIV) is a causative agent for the development of AIDS. Once entered,…

Q: Short Answer Use the diagram below to answer items 1-5. B cell engulfs pathogen antigen phagocyte…

A: T cells are formed in the thymus and are programmed to recognise only one foreign particle…

Q: Which is not applicable to innate immunity? A) O It is faster than adaptive immunity in responding…

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

Q: The immune system cell that binds to herpes infected cells and kills them are? A. Regulatory cells…

A: The immune system can be defined as the type of organ system which participates in protecting the…

Q: 2) Hematopoietic stem cells give rise to: (Choose all that apply) а. B cells b. T cells Macrophages…

A: The stem cells that give rise to other blood cells are known as hematopoietic stem cells (HSCs).…

Q: Killer T-cells help protect us from viral infections. Explain the mechanism of their action.

A: Virus are amongest the most dangerous micoorganisms. They replicate only within living host. And…

Q: What is the role of histamine in inflammatory response? Name few drugs which reduce the symptoms of…

A: Allergy is referred to as the hypersensitiveness of a person to some foreign substance when coming…

Q: Antibody-mediated immunitya. works best against intracellular antigens.b. regulates the activity of…

A: Antibody-mediated immunity: Antibody-mediated immunity is also referred as Humoral immunity which…

Q: In table form, differentiate Primary from Secondary Immune Response according to the ff. a. type of…

A:

Q: Part 2. Identify each immune response as either humoral (H) or cellular (C). А. release of histamine…

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

Q: List 3 things that helper T cells do:

A: Thymus is the site where T-lymphocytes get mature. T-lymphocytes arises in bone marrow. when t-cells…

Q: The largest and most effective of the phagocytes are:  a. red blood cells b. lymph nodes c.…

A: Question- The largest and most effective of the phagocytes are:  a. red blood cells b. lymph nodes…

Q: Which cells of the immune system secrete antibodies? A. Natural killer cells only B. T cells only C.…

A: The immune system helps prevent the entry of foreign substances into the body. The immune system…

Q: How do corticosteroids act to block inflammation? a. Blocking neutrophil migration b. Blocking…

A: Inflammation is caused due to the influx of granulocytes such as Eosinophils, basophils, and…

Q: which product of inflammation is responsible for causing a fever? A- Platelet Activating factor B-…

A: Inflammation is presented with rubor, dolor, calor,tumor and functio lessa. Rubor= redness.…

Q: Which best describes the term "immunological disorder"?   a. An exaggerated or inadequate immune…

A: Introduction  The immune system is a defence mechanism that protects the body from foreign invaders.…

Q: A person with AIDS is likely to develop infectious diseases because the virus that causes AIDS…

A: HIV (Human immunodeficient virus) is an RNA virus belonging to the retrovirus group. The virus…

Q: T cells that react with self antigens are destroyed through: A. cytokinesis b. macrophages c.…

A: The T cells are one of two lymphocytes and play an important role in the immune system. B-cells are…

Q: Select best one. Which of these cell types aids the activation of T lymphocytes by antigens? a.…

A: We know that, Adaptive immunity is further classified as humoral and cell-mediated immunity. Humoral…

Q: A patient with a history of asthma and eczema has a higher than normal concentration of IgE in their…

A: The biological disorders in the body disturb the usual condition of the body and mind. These…

Q: What is the purpose of an adjuvant?a. to kill the microbeb. to stop allergic reactionsc. to improve…

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

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.