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: which of the following is true about the immune system? check all that apply. a. cd8 t cells…

A: Introduction The main function of the immune system is to protect us from foreign substances and…

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

A: Explanation given for the mismatch pair.

Q: Passive immunitya. is permanent.b. may result from immunoglobulin injections.c. requires memory B…

A: Passive immunity is provided when a person is given antibodies to a disease rather than producing…

Q: The process of removing auto-reactive b and T cells during maturation is called: a. Clonal…

A: Clonal deletion is the removal through apoptosis of B cells and T cells that has expressed…

Q: 6. B cells are most important in the _______ immunity type of _______ immunity.? .A.Cellular;…

A: Introduction :- The lymphocyte class known as B cells is in charge of the humoral immunity portion…

Q: The human immunodeficiency virus has a preference forinfectinga. B lymphocytes.b. cytotoxic T…

A: The human immunodeficiency virus has a preference forinfecting

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: What types of cells could be involved in specifi c immune reactions against the rabies virus? a. T…

A: Rabies is a especial neurological infection with rabies virus that cause encephalitis in humans…

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: Type II hypersensitivity reaction                                                  Type III…

A: Type IV hypersensitivity- Effector T cells specific for the sensitizing Ag Type II hypersensitivity…

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: 16. Expression of CD25 and CTLA-4 is a characteristic of? A. TH1 B. TH2 Treg

A: CD25 is a protein marker for CD4+ thymocytes. It hs actually the α-chain of the IL-2 receptor. CTLA4…

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: Which is/are not part of adaptive immunity?a. phagocytic cells e. antigen receptorsb.…

A: Adaptive immunity is a type of immunity that an organism gets after it has been exposed to an…

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: 4.

A: As we know The proteins that bind to the body's foreign invaders are known as antibodies in the…

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

A: An antibody (Ab), also known as immunoglobulin (Ig), is a large, Y-shaped defensive protein produced…

Q: 3. Sudin is infected by pathogen D. Six days later, his blood is infected by pathogen E. Which cells…

A: Ans- C.  Memory T cells

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: 1. In central tolerance, 3 mechanisms deviate B cells away from making autoreactive antibody. Which…

A: These are multiple choice questions.

Q: .If thymus gland is removed from a newborn, ___________. A. lymphoid organs are not affected B.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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: B cells are most important in the _______ immunity type of _______ immunity.? .A.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: 10. Phagocytosis by a phagocyte is required for: B cell action b. helper T (T4) cell action c.…

A: Answer

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: 6. Thymic positive selection of T cells means? a. T cells that recognize non self peptides are…

A: The thymus is the organ where the T cells of the immune system mature after getting produced in the…

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: What is the function of cytotoxic T-cells?

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