7. Which are important in nonspecific immune defenses? a. interferons b. lymphocyte activation c. neutrophil activation d. secretion of antibodies from plasma cells e. a & c

Q: Which is the proper order of events in cell-mediated immunity? (1) Cloning of cytotoxic T cells and…

A: The objective of the question is to determine the correct sequence of events in cell-mediated…

Q: 8. Which statement is incorrect? a. IgG is the most abundant antibody in blood b. Antibodies can…

A: Antibodies play a key role in the immune responses against foreign bodies such as pathogenic…

Q: vaccination provides natural passive immunity A. True B. False 1e. Lymph nodes have several…

A: Answer 1a Toxoids and vaccine function similarly  True this statement is correct.  Answer 1b Active…

Q: 9. Which of the following antibody classes or isotypes facilitate the sequential binding of the C1,…

A: Antibodies are also known as immunoglobulin.These are the protein which are made by plasma cell .…

Q: Which of the following immune cells are most efficient for eliminating parasitic worms? 單選: A.…

A: Eosinophils as effector cells against parasites. Following nematode infection, eosinophils gather…

Q: 29. T-cell dependent antigens can a. directly stimulate B cells to multiply and produce antibodies…

A: The correct answer is (c) restrict antibody formation. T-cell dependent antigens require the help of…

Q: 7. Which of the following is more effective against bacteria than viruses? A. Type 1 Interferon B.…

A: Humoral immunity is the component of immunity that is controlled by extracellular fluid-based…

Q: Active immunity generally lasts longer than passive immunity. A. True B. False

A: Active immunity happens when our own immune system is liable for protecting us from a pathogens.…

Q: 17. What types of cells can B-lymphocytes differentiate into?   A. Natural killers and phagocytes…

A: The different types of WBC (white blood cells) are responsible for performing specific functions…

Q: 6. The C1 complement protein is activated when it binds to the A. Fc region of an antigen-bound…

A: Complements are a group of thermo labile enzymetic proteins found in the serum and body fluids and…

Q: 30. A nursing baby: a. Lacks innate immunity  b. Lacks antimicrobial related immunity  c. Lacks…

A: In humans, the period of gestation or pregnancy is 280 days. During this period, the fetus develops…

Q: Which term is used to describe hypersensitivity of the immune system to reLatively harmless…

A: The immune system is made up of special organs, cells and chemicals that fight infection (microbes).…

Q: 6. In a healthy person, which of the following cells is the most numerous innate immune cells in the…

A: The most numerous and crucial biological component of the innate immune response is the neutrophil,…

Q: When first exposed to a foreign molecule, are the first class of antibodies generated a. cytokines…

A: The immune response is a set of responsive mechanisms carried out by the immune system of the body…

Q: B cells are most important in the _______ immunity type of _______ immunity.

A: Immunity is the resistance to disease. The two important components of immunity are innate and…

Q: 2. B cells proliferate and differentiate into plasma cells and memory cells in the secondary…

A: Introduction :- Differentiated B-lymphocyte white blood cells called plasma cells are able to…

Q: What types of cells could be involved in specific immune reactionsagainst the rabies virus?a. T…

A: Viruses are microscopic parasites, typically much smaller than bacteria. They lack the ability to…

Q: B Lymphocytes typically target:   a. parasitic worms   b. bacteria   c. viruses   d. intracellular…

A: they are essential for humoral immunity they are known as memory cells plasma cells are mature B…

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: B cells are most important in the immunity type ofi mmunity. .A.Cellular; specific B.Cellular;…

A: We know that immunity is resistance to disease. The two important components of immunity are innate…

Q: 4. Which of the following statements about antibodies is incorrect? A. Antibodies are secreted by…

A: Antibodies are the protein substances secreted from specialised cells called B cells. These…

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: 1.Which of the following statements about antibodies is incorrect? A.Antibodies are secreted by…

A: Hi, Thanks For Your Question.  Answer : Correct Option  Is E(Antibodies eliminate bacteria by…

Q: 3. Helper T cells can be activated by I. interacting with an infected cell expressing an antigen-MHC…

A: Introduction Antigen-presenting white blood cells (WBC), such as macrophages (a large phagocytic…

Q: 24. Phagocytes a. Engulf and ingest foreign material b.) Are also known as T lymphocytes C. Are not…

A: Organs, cells, and chemicals make up the immune system, which works collectively to fight pathogens.…

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: 33. Neutrophils, eosinc a. Have immur b. Are granulo Contain ves

A: The blood which circulates in the body is mainly composed of the following cellular components- red…

Q: Vhat are antibodies? LA Free floating MHCII B. Free floating TCRS C. Free floating BCRS D. Free…

A: The proteins that bind to the body's foreign invaders are known as antibodies. These protein signal…

Q: 11. B cells are most important in the _______ immunity type of _______ immunity. .A.Cellular;…

A: Immunity is the resistance to disease. The two important components of immunity are innate and…

Q: 10. Injecting antibodies from a human donor who is immune to a disease is ... A. natural active…

A: Immune system is responsible for giving protection against foreign pathogenic organisms. White blood…

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

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

Q: What type of T cell helps an organism mount a rapid immune response if it is secondarily infected…

A: The T-lymphocytes or T-cells are differentiated from bone marrow but they get matured in the thymus…

Q: phagocytes?

A: Phagocytes: Phagocytes are a type of immune cells which surround and kill microorganisms. They…