Protein receptors found on macrophages that recognize foreign antigens a. toll-like receptors    b. MHC I   c. MHC II   d. PAMPs

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: Which of the following pairs is mismatched? a. activation of memory cells: secondary immune…

A: Explanation given for the mismatch pair.

Q: Humoral immunity is the part of the adaptive immune system involving: A.cytotoxic T cells killing…

A: The adaptive immune system is also known as acquired or specific immune system. It is a subset of…

Q: Cell-mediated immune response includes the following except to ______. A. activate B lymphocyte B.…

A: Cell mediated immune response is carried out by T lymohocytes of our immune system. It is an immune…

Q: An infected epithelial cell may present the antigen on its a. MHC class I molecules. b. MHC class II…

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

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: Your patient is born without B cells. He cannot a. fight off intracellular infections b. have a Type…

A: Introduction B lymphocytes, commonly known as B cells, produce antibodies, which are a type of…

Q: A second exposure to a given foreign antigen elicits a rapid and pronounced immune response…

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

Q: Vaccination increases the number of(A) different receptors that recognize a pathogen.(B) lymphocytes…

A: Vaccination is the process of inoculating an individual with attenuated antigen, which can elicit an…

Q: An antigen-presenting cell (APC)a. presents antigens to T cells.b. secretes antibodies.c. marks each…

A: Helper T-cells activate B-cells in order to generate antibodies and aid the production of killer…

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: Which innate immune system component uses MHC class I molecules directly in its defense strategy? a.…

A: Innate immune system:                 The first line of defense that castles border for pathogen…

Q: Molecules that label your cells as “self” area. antibodies.b. T-cell receptors.c. major…

A: The immune system of a healthy individual possess an ability to differentiate between the self cells…

Q: Which of the following is NOT true of B ceIls? a. Has membrane-bound antibodies. b. Produces…

A: Answer : d . Kills infected body cells B cells are responsible for secreting Antibodies. T cells are…

Q: Which innate immune system component uses MHC I molecules directly in its defense strategy? a.…

A: The immune system consists of the adaptive and innate immune responses. Innate immunity is present…

Q: An individual B cella. produces antibodies with sites that can bind manydifferent antigens.b.…

A: Antibodies: also called as agglutinogen. These are special chemicals found in the blood which act…

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: 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: Cytokines (a) are regulatory Toll-like receptors (b) prevent the inflammatory response (c) include…

A: Cytokines are a group of proteins released by specialized immune cells. These proteins work as a…

Q: Which is/are important in innate immune responses?a. interferonsb. clonal inactivationc. lymphocyte…

A: Innate immunity on non specific immunity includes all the defence elements with which and individual…

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: The best definition of an antigen is:(a) A foreign molecule in the body(b) A chemical that elicits…

A: In biology, ‘Immunity’ is known as the capability of resisting the progression of harmful…

Q: in antibody-mediated immunity, what happens immediately after B cells are activated? a. the foreign…

A: The immune system of the body fights against foreign invaders and protect the body from infections.…

Q: Antigen-presenting cells cana. take in foreign antigens.b. process antigens.c. use MHC class II…

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

Q: One of the common characteristics of lymphocytes (1), neutrophils, and macrophages) the resulting…

A: In the human body, the resistance against the entry of any foreign particle or antigens is executed…

Q: Immunoglobins help eliminate the pathogen through the process of:

A: Option C . Direct Phagocytosis .

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: 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: 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: 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: What is the function of cytotoxic T-cells?

A: Acquired immunity develops after birth. It is provided by B and T lymphocytes.

Q: Select the correct one. In antibody-mediated immunity, what happens immediately after B cells are…

A: The antibody-mediated immunity involves the activation of T-helper cells that interacts with B cell…

Q: In a normal individual, a T cell that interacts with a self-antigen in the thymus will more than…

A: Introduction  Immunity is the property or ability of the body to defend against the pathogens.…

Q: The cytolytic action of the complement system is most similar to the action ofa. interleukin-1.b.…

A: Complement system- It is a cascade system, plays a role in immune system by enhancing the antibodies…

Q: of the choices, which cells stimulate directly B cells to divide and produce antibodies? a. mast…

A: The immune system provides defense against invading pathogens. It is a complex network of cells,…

Q: Which part of an antibody binds to the antigen? a. Heavy chain. b. Light chain. c. Variable region.…

A: Which part of the antibody binds to antigen ? Answer : c. Variable region The variable region is…

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: After his recovery from chickenpox, which lymphocytes will keep this patient from becoming infected…

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

Q: Which part of the immune system does not target specific new variants of the COVID 19 invaders? A)…

A: It can be defined as a complex biological system endowed with the capacity to recognize and tolerate…

Q: The benefit of specific immunity is the production of ________ that provide long-lasting protection.…

A: Solution mentioned below

Q: Why is the fact that the patient has no spleen important? A. The spleen is the site of B cell…

A: Spleen is a highly vascular ductless organ that is located in the left abdominal region near the…