Description : More than 500 CD4+ T lymphocytes/mm3 indicates which stage of HIV infection? a) CDC category A - HIV asymptomatic More than 500 CD4+ T lymphocytes/mm3 indicates CDC category A - HIV asymptomatic. b) ... CDC category C - AIDS Less than 200 CD4+ T lymphocytes/mm3 indicates CDC category C - AIDS.
Last Answer : a) CDC category A - HIV asymptomatic More than 500 CD4+ T lymphocytes/mm3 indicates CDC category A - HIV asymptomatic.
Description : Low Lymphocytes and multiple lymph nodes enlarged?
Last Answer : Wait and see what the hematologist says. Breathe.
Description : Explain the formation of lymphocytes. -Biology
Last Answer : answer:
Description : What is the function of Lymphocytes in blood? -Biology
Description : What are Lymphocytes? -Biology
Description : Where are B-lymphocytes produced? -Biology
Description : Where are B-lymphocytes stored? -Biology
Description : Assertion` :` Lymph is a colourless fluid containing specialised lymphocytes which are responsible for the immune responses of the body. Reason `:` Ex
Last Answer : Assertion` :` Lymph is a colourless fluid containing specialised lymphocytes which are responsible for the ... . If both Assertion & Reason are false.
Description : Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside the host are introduced into a host. Reason
Last Answer : Assertion : Artificially acquired passive immunity results when antibodies or lymphocytes produced outside ... both the assertion and reason are false
Description : In total WBCs, lymphocytes are `:-`
Last Answer : In total WBCs, lymphocytes are `:-` A. `60-65%` B. `2-3%` C. `6-8%` D. `20-25%`
Description : Number of lymphocytes present in a healthy human is
Last Answer : Number of lymphocytes present in a healthy human is A. 1 trillion B. 100 billion C. 10 trillion D. 100 trillion
Description : What is the bean shaped organ above that filters out microorganisms and foreign materials taken up by lymphocytes?
Last Answer : The answer is: D) lymph node.
Description : What is the clear body fluid that bathed the cells and transports lymphocytes?
Last Answer : Lymph
Description : Myeloma cells and lymphocytes can be fused by using (A) Calcium chloride (B) Ethidium bromide (C) Polyethylene glycol (D) DNA polymerase
Last Answer : Answer : C
Description : Monoclonal antibodies are prepared by cloning (A) Myeloma cells (B) Hybridoma cells (C) T-Lymphocytes (D) B-Lymphocytes
Last Answer : Answer : B
Description : Lymphocytes are responsible for the formation of (A) Serum (B) Plasma (C) Antibody (D) Calcium
Description : MHC class II proteins are present on the surface of (A) All cells (B) B lymphocytes only (C) Macrophages only (D) Macrophages and B lymphocytes
Last Answer : Answer : D
Description : Cell-mediated immunity is the function of (A) B lymphocytes (B) T lymphocytes (C) Plasma cells (D) Basophils
Description : The initiation of a humoral immune response involves a complex interaction of the antigen, cells and intercellular messengers. Which of the following statement(s) concerning the initiation of the ... various cellular components of the immune system d. An antigen must be a living microorganism
Last Answer : Answer: a, b Stimulation of the immune system occurs after a variety of antigen-presenting cells (B lymphocytes, macrophages, dendritic cells, and Langerhans cells) act to engulf ... polysaccharides), most antigens require coordinated efforts of the various cellular components of the immune system
Description : Which of the following cells or blood elements play a role in the initial phases of wound healing? a. Polymorphonuclear leukocytes (PMNs) b. Platelets c. Monocytes d. Lymphocytes
Last Answer : Answer: a, b, c, d Shortly after the initial injury, the wound is full of debris which is cleared over the next several days by recruited and activated phagocytic cells. ... in the initial hemostatic process as well as releasing chemotactic factors and factors leading to fibroblast proliferation
Description : Which of the following statement(s) is/are true concerning the cell function of phagocytosis? a. Phagocytosis is a mechanistically distinct process of endocytosis performed by special cells to take ... known as clathrin d. Phagocytosis is performed only by white blood cells and tissue macrophages
Last Answer : Answer: a Phagocytosis is a specialized form of endocytosis by which large particles are internalized by specialized cells primarily macrophages and neutrophils. To be phagocytosed, particles ... the lumen of the thyroid follicle, thereby releasing the thyroid hormones, thyroxine triiodothyronine
Description : Cromolyn has as its major action (a) Block of calcium channels in lymphocytes (b) Block of mediator release from mast cells (c) Block of phosphodiesterase in mast cells and basophils (d) Smooth muscle relaxation in the bronchi (e) Stimulation of cortisol release by the adrenals
Last Answer : Ans: B
Description : The largest cells in mammalian blood are – (1) Erythrocytes (2) Monocytes (3) Basophils (4) Lymphocytes
Last Answer : (2) Monocytes Explanation: Various components of blood are: Plasma, Erythrocytes (Red Blood Cells), Leueocytes (White Blood Cells) and Thrombocyles/Platelets. Monocytes, also known as ... and cytoplasm is abundant. -For any Study materialContact WhatsApp: 8337932441 Join Telegram- Click here
Description : Transport of oxygen by blood takes place with the help of (1) Erythrocytes (2) Thrombocytes (3) Lymphocytes (4) Leuecocytes
Last Answer : (1) Erythrocytes Explanation: Red blood cells, or erythrocytes, are the most common type of blood cell and the vertebrate organism's principal means of delivering oxygen (O2) to the body tissues via ... iron-containing bio-molecule that can bind oxygen and is responsible for the blood's red color.
Description : In our body, antibodies are formed against pathogens in – (1) liver by RBC (2) blood by platelets (3) brain by macrophages (4) thymus by lymphocytes
Last Answer : (4) thymus by lymphocytes
Description : AIDS virus destroys – (1) Lymphocytes (2) Monocytes (3) Neutrophils (4) Basophils
Last Answer : (1) Lymphocytes Explanation: AIDS virus destroys the T-cells inside of the immune system. T cells or T lymphocytes belong to a group of white blood cells known as lymphocytes, and play a central role in cell-mediated immunity.
Description : The cells which are responsible for the production of antibodies are – (1) red blood cells (2) neutrophils (3) lymphocytes (4) platelets
Last Answer : (3) lymphocytes Explanation: An antibody (Ab), also known as an immunoglobulin (Ig), is a large Y-shaped protein produced by B-cells that is used by the immune system to identify and ... called antigens usually on the outside of an invading organism. This is called the antigen-antibody reaction.
Description : Which of these components of the blood is responsible for clotting - (1) R.B.C. (2) Lymphocytes (3) Monocytes (4) Platelets
Last Answer : (4) Platelets Explanation: Coagulation is the process by which blood forms clots. It is an important part of hemostasis, the cessation of blood loss from a damaged vessel, wherein a ... begins almost instantly after an injury to the blood vessel has damaged the endothelium lining the vessel.
Description : Which among the following helps in circulation of blood? (1) Arithrocyt us (2) Blood platelets (3) Monocytes (4) Lymphocytes
Last Answer : (4) Lymphocytes Explanation: Lymphocytes helps in the circulation of blood. A lymphocyte is a type of white blood cell in the vertebrate immune system. The lymphatic system is an open system ... blood plasma after it has been filtered from the blood cells and returned to the lymphatic system.
Description : Which one of the following cells produces antibodies? (1) Eosinophil (2) Monocyte (3) Basophil (4) Lymphocytes
Last Answer : (4) Lymphocytes Explanation: Antibodies are secreted by a type of Lymphocytes (White Blood cell). Antibodies can occur in two physical forms, a soluble form that is secreted from the cell, and ... bacteria and viruses. The antibody recognizes a unique part of the foreign target, called an antigen.
Description : Which are the largest of the white blood cells? A. lymphocytes B. eosinophils C. basophils D. monocytes (Answer)
Last Answer : D. monocytes (Answer)
Description : A granuloma is C A. a small nodule of granulation tissue B. a tumour composed of granulocytes C. composed primarily of epithelioid cell, fibroblasts and lymphocytes D. None of these
Last Answer : composed primarily of epithelioid cell, fibroblasts and lymphocytes
Description : Chemotactic factors are produced by EXCEPT: D A. Lymphocytes B. Monocytes C. Endothelial cells D. Collagen
Last Answer : Collagen
Description : Predominant cell types in typical chronic inflammation are all of the following EXCEPT: A A. Polymorphonuclear leukocytes B. Macrophages C. T helper lymphocytes D. NK cells
Last Answer : Polymorphonuclear leukocytes
Description : Epithelioid cells within granulomas are derived from which of the following? B A. Plasma cells B. Macrophages C. Lymphocytes D. Neutrophils
Last Answer : Macrophages
Description : Reactive oxygen metabolites are produced by all the following EXCEPT: B A. Macrophages B. Lymphocytes C. Monocytes D. None of these
Last Answer : Lymphocytes
Description : Secretory granules are prominent in all of the following EXCEPT: C A. Eosinophils B. Pancreatic islet cells C. Lymphocytes D. None of these
Description : Chemotactic factors are produced by: C A. Lymphocytes B. Monocytes C. All of the above D. None of these
Last Answer : All of the above
Description : Tissue macrophages are derived from which one of the following? A. Resident activated fibroblasts B. Activated B lymphocytes C. Circulating monocytes D. Platelets
Last Answer : Platelets
Description : Each of the following regarding plasma cells is true EXCEPT: C A. The nuclei display prominent peripheral chromatin B. They are derived from B lymphocytes C. They contain prominent absorptive vacuoles D. None of these
Last Answer : They contain prominent absorptive vacuoles
Description : Predominant cell types in typical chronic inflammatory reactions include all of the following EXCEPT: A A. Polymorphonuclear leukocytes B. Macrophages C. T helper lymphocytes D. None of these
Description : Epithelioid cells within granulomas are derived from which of the following? B A. Plasma cells B. Macrophages C. Lymphocytes D. None of these
Description : Early granulation tissue is BEST characterized by the presence of: C A. Plasma cells and macrophages B. T lymphocytes and eosinophils C. Capillary buds and fibroblasts D. None of these
Last Answer : Capillary buds and fibroblast
Description : Which one of the following are cardinal features of granulation tissue? C A. Abundant collagen B. Proliferating macrophages and lymphocytes C. Proliferating capillaries and fibroblasts D. None of these
Last Answer : Proliferating capillaries and fibroblasts
Description : The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by (a) administering adenosine deaminase activators (b) introducing bone marrow cells producing ADA into ... replacement therapy (d) periodic infusion of genetically engineered lymphocytes having functional ADA cDNA
Last Answer : (b) introducing bone marrow cells producing ADA into cells at early embryonic stages
Description : Which of the following is commonly used as a vector for introducing a DNA fragment in human lymphocytes? (a) Retrovirus (b) Ti plasmid (c) λ phage (d) pBR322
Last Answer : (a) Retrovirus
Description : Which one of the following statements is correct with respect to AIDS? (a) The HIV can be transmitted through eating food together with an infected person. (b) Drug addicts are least ... and nutrition. (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.
Last Answer : (d) The causative HIV retrovirus enters helper T-lymphocytes thus reducing their numbers.
Description : At which stage of HIV infection does one usually show symptoms of AIDS? (a) Within 15 days of sexual contact with an infected person (b) When the infected retro virus enters host cells (c) ... large number of helper T - lymphocytes (d) When the viral DNA is produced by reverse transcriptase
Last Answer : (c) When HIV damages large number of helper T - lymphocytes
Description : HIV that causes AIDS, first starts destroying (a) helper T-lymphocytes (b) thrombocytes (c) B-lymphocytes (d) leucocytes.
Last Answer : (a) helper T-lymphocytes
Description : Antibodies are produced by (a) leucocytes (b) monocytes (c) lymphocytes (d) spleen.
Last Answer : (c) lymphocytes