Which of the following is a type of cytokine? a. mast cell b. lysozyme C c. chemokine O d. immunoglobulin

Q: An epitope associates with which part of an antigen receptoror antibody?(A) the tail(B) the…

A: Antigens are the substances that provoke an immune response in the body. They can be microorganisms…

Q: Jay, a young dad, takes his baby to the pediatrician several times in the first year of the child’s…

A: To explain: Why the visits of the baby to the pediatrician to stimulate to make memory cells against…

Q: plement system of defense is opsonization. This process  A.) creates an acidic environment that…

A: Pathogen can be defined as the infectious agent is considered as the biological agent that  will…

Q: 1) Which line of defense are these immune response components part of? A) Complement: B)…

A: Immune system helps in protection of organism against disease.Immune system helps in detection and…

Q: What is the first step in the antigen-antibody interaction? A.) opsonization B.) epitope production…

A: Interaction of the body with any foreign substance causing deleterious health effects is called…

Q: Which type of cell actually secretes antibodies?a. T cell b. macrophage c. plasma cell d. monocyte

A: B-cells, also said to be B lymphocytes, are a type of white blood cells that play a crucial role in…

Q: The first cell type active in the innate response is usually a(n)       A) phagocyte.…

A: The innate immune system is the first line of defence in the body.

Q: The immune system of a person is supressed. He was found positive for a pathogen in the diagnostic…

A: ELISA refers to the enzyme-linked immunosorbent assay. It is a plate-based assay technique and is…

Q: nterferons are:  (a) Cytokine barriers (b) Physical barriers (c) Cellular barriers (d)…

A: Interferons (IFN) are glycoproteins produced by specific cells in response to the presence of…

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 of the following statements is _false_ regarding phagocytosis? A. It can ingest large…

A: Phagocytosis is a process in which a cell attaches to the object it intends to ingest on the cell…

Q: The cross-linkage of antigenic cells by antibodies is known asa. opsonization b. a cross-reaction c.…

A: Antibodies bind with antigen via non-covalent bonds like hydrogen bonds, van der waals interaction.…

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: In what process is clonal selection important?a. Complement function c. Inflammationb. B cell…

A: Clonal selection is a process that explains how a single B or T cell that recognizes an antigen…

Q: Explain why each choice (a-d) is correct or incorrect.  A vaccine is effective because  a. The…

A: Vaccine contain weak or inactive parts of particular antigen that triggers an immune response…

Q: Immunosuppression is a lowering of the responsiveness ofthe immune system to materials it recognizes…

A: The immune system safeguards the body against harmful pathogens. The immune cells (B-cells, T-cells,…

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

A:

Q: The region of an antibody that is the antigen binding site is thea. constant region. b. variable…

A: Proteins that are Y-shaped that fight against the body’s foreign invaders are called Antibodies.…

Q: Bacterial capsules a. kill phagocytes b. prevent engulfment by phagocytes  c. prevent the…

A: The capsule is referred to as a pathogenicity since it increases bacteria's potential to produce…

Q: The major histocompatibility complex (MHC) (a) consists of Y-shaped molecules (b) encodes certain…

A: Immunology is an important branch of biology which include the study of immunity of different…

Q: What is the first step in the antigen-antibody interaction? A.) opsonization B.) epitope production…

A: Out of all the options provided -  Option (A) is INCORRECT - Opsonization is the process of coating…

Q: Antibodiesa. prevent antigens from binding together.b. promote phagocytosis.c. inhibit…

A: Answer: Introduction: Antibody is also known as immunoglobulin, a protein formed by the immune…

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: An immunizatin reduces the chance that you will catch a severecase of disease because the…

A: Immunization is the process of developing immunity against the particular pathogen by the…

Q: Which of the following is NOT a way that an antibody can destroy a bacterial cell? a.…

A: Ans :- option (D) is right

Q: Which cytokines will act on mast cells to cause degranulation and local inflammation? a. TNF-alpha…

A: Cytokines are an enormous group of peptides, proteins, or glycoproteins that are released by…

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

A:

Q: The following are characteristics of innate immune receptors except A. trigger immediate response…

A: Innate immunity is a nonspecific immune response having physical, physiological, cellular, and…

Q: Acquired Immunodeficiency Syndrome is characterized by which of the following? a. Caused by a…

A: Reproduction is defined as the process of an organism by which it produces a offspring that re…

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: Explain Which Enhanced phagocytosis of a cell by the binding of a specific protein is called…

A: The body's operation is extremely complicated. Different organ systems are important in sustaining…

Q: Which of the following is the end product of the complement system?a. properdin b. cascade reaction…

A: The complement system helps antibodies and phagocytic cells to clear pathogens, it consists of a…

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: Fusion between a plasma cell and a tumor cell creates a: a. Lymphoma b. Myeloma c. Lymphoblast…

A: Plasma cells are also called as Plasma B cells which are white blood cells that originates from bone…

Q: Which of the following should be the same inidentical twins?(A) the set of antibodies produced(B)…

A: The term MHC denotes Major Histocompatibility complex molecule. This molecule is the host protein…

Q: The complement system of defense is composed of proteins that are always present in the blood. Which…

A: The complement system of defense is composed of proteins that are always present in the blood. The…

Q: Type of specific resistance that has been introduced to the body is already antibodies that provide…

A: A. Natural immunity:- It is a kind of immune response/immunity that the body develops on its own…

Q: Which of the following statements is not true?(A) An antibody has more than one antigen-binding…

A: The ability of the body to defend itself against invading foreign agents like bacteria, viruses, or…

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: Which organelle do phagocytes use to digest engulfed particles? a. lysosome b. nucleus c.…

A: The process by which phagocytes, or living cells, eat or engulf other cells or particles is known as…

Q: Why are most unimmunized children protected against diseases such as measles?Choose one: A.  They…

A: Immunization is the process whereby a person is made immune or resistant to an infectious disease,…

Q: A signaling molecule from microbes recognized by phagocytes isa. pyrogen b. PAMP c. complement d.…

A: Step 1 Phagocytes are cells recognizing pathogens and destroy them through phagocytosis.…

Q: If the patient's mother had previously vaccinated her son against chickenpox, what form of immunity…

A: Immunity is the ability of the body to fight against different microorganism. They are of 2 types -…

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.