Damage to thymus in a child may lead to (a) a reduction in haemoglobin content of blood (b) a reduction in stem cell production (c) loss of antibody mediated immunity (d) loss of cell mediated immunity.

Damage to thymus in a child may lead to
(a) a reduction in haemoglobin content of blood
(b) a reduction in stem cell production
(c) loss of antibody mediated immunity
(d) loss of cell mediated immunity.
by

1 Answer

Answer :

(d) loss of cell mediated immunity.
by

Related questions

Which of the following statements is false regarding B cells? A- B cells can undergo class switching and produce a different antibody type B- B one marrow stem cells migrate to the thymus and develop into B cells C- B cells synthesize antibodies and put them on their cell surface D- B cells that recognize high concentrations of antigens (self) in the absence of other signals

Description : Which of the following statements is false regarding B cells? A- B cells can undergo class switching and produce a different antibody type B- B one marrow stem cells migrate to the thymus and ... D- B cells that recognize high concentrations of antigens (self) in the absence of other signals

Last Answer : B one marrow stem cells migrate to the thymus and develop into B cells

Which of these is specifically responsible for antibody-mediated immunity? a) T cells b) B cells c) platelets d) All of the above

Description : Which of these is specifically responsible for antibody-mediated immunity? a) T cells b) B cells c) platelets d) All of the above

Last Answer : ANSWER: B -- B CELLS

Cyclosporine has the following attributes except: A. It selectively suppresses humoral immunity without affecting cell mediated immunity B. It is more active as immunosuppressant when administered before antigen exposure than after it C. It is not toxic to the bone marrow D. Its major toxicity is kidney damage

Description : Cyclosporine has the following attributes except: A. It selectively suppresses humoral immunity without affecting cell mediated immunity B. It is more active as immunosuppressant when administered before antigen exposure ... It is not toxic to the bone marrow D. Its major toxicity is kidney damage

Last Answer : A. It selectively suppresses humoral immunity without affecting cell mediated immunity

Which hormone helps in cell-mediated immunity? -Biology

Description : Which hormone helps in cell-mediated immunity? -Biology

Last Answer : answer:

Cell-mediated immunity is the function of (A) B lymphocytes (B) T lymphocytes (C) Plasma cells (D) Basophils

Description : Cell-mediated immunity is the function of (A) B lymphocytes (B) T lymphocytes (C) Plasma cells (D) Basophils

Last Answer : Answer : B

The following are true about cell-mediated immunity: a. antigen-specific function is the role of the T-lymphocytes b. cell-mediated immunity can activate the complement system c. it is responsible for the delayed hypersensitivity reaction. d. Gamma interferon is an important mediator of B-cell activation.

Description : The following are true about cell-mediated immunity: a. antigen-specific function is the role of the T-lymphocytes b. cell-mediated immunity can activate the complement system c. it is ... the delayed hypersensitivity reaction. d. Gamma interferon is an important mediator of B-cell activation.

Last Answer : cell-mediated immunity can activate the complement system

Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells

Description : Acquired immunity consists of humoral immunity maintained by _____ and _____, and cell-mediated immunity controlled by _____ a. T cells, complement, B cells b. T cells, Interleukin, B cells c. B cells, antibodies, T cells d. B cells, histamine, T cells

Last Answer : c. B cells, antibodies, T cells

_____ responds to, distinguishes between and remembers specific pathogens it has encountered. a. Acquired immunity b. Innate immunity c. Humoral immunity d. Cell-mediated immunity

Description : _____ responds to, distinguishes between and remembers specific pathogens it has encountered. a. Acquired immunity b. Innate immunity c. Humoral immunity d. Cell-mediated immunity

Last Answer : a. Acquired immunity

._________ cells are associated with immunity while_____________ cells are part of___________ immunity. a. B; cell-mediated; T; innate b. T; humoral; B; cellular c. T; cell-mediated; B; humoral d. T; humoral; B; nonspecific

Description : ._________ cells are associated with immunity while_____________ cells are part of___________ immunity. a. B; cell-mediated; T; innate b. T; humoral; B; cellular c. T; cell-mediated; B; humoral d. T; humoral; B; nonspecific

Last Answer : c. T; cell-mediated; B; humoral

In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Description : In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Last Answer : D.All of the above

In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Description : In which of the following cell mediated immunity (CMI) participates? A.Delayed hypersensitivity reaction B.Graft versus host reaction C.Allograft rejection D.All of the above

Last Answer : .All of the above

Actions of progesterone include the following except: A. Rise in body temperature B. Endometrial proliferation C. Proliferation of acini in mammary gland D. Suppression of cell mediated immunity

Description : Actions of progesterone include the following except: A. Rise in body temperature B. Endometrial proliferation C. Proliferation of acini in mammary gland D. Suppression of cell mediated immunity

Last Answer : B. Endometrial proliferatio

The following are true: a. Ig G crosses the placenta b. thymus gland is responsible for cellular immunity c. C1-9 is used by the alternative complement pathway d. eosinophils are responsible for phagocytosis

Description : The following are true: a. Ig G crosses the placenta b. thymus gland is responsible for cellular immunity c. C1-9 is used by the alternative complement pathway d. eosinophils are responsible for phagocytosis

Last Answer : Ig G crosses the placenta

Passive artificial immunity occurs in the body when a/an _____ is injected into the body or when a developing fetus receives antibodies across the placenta. a. antibody-rich serum b. antigens c. haptens d. adjuvant

Description : Passive artificial immunity occurs in the body when a/an _____ is injected into the body or when a developing fetus receives antibodies across the placenta. a. antibody-rich serum b. antigens c. haptens d. adjuvant

Last Answer : a. antibody-rich serum

___is rupture of red cells with release of intracellular haemoglobin can occur if the Antibody has the property of hemolysin. a) Agglutination b) Hemolysis c) Reaction

Description : ___is rupture of red cells with release of intracellular haemoglobin can occur if the Antibody has the property of hemolysin. a) Agglutination b) Hemolysis c) Reaction

Last Answer : b) Hemolysis is the rupture of red blood cells with the release of intracellular hemoglobin, and it can occur if the antibody has the property of hemolysin. Hemolysis is the destruction or ... bacteria, and viruses, and it is a key principle in many diagnostic tests for infectious diseases.

Which is NOT a correct association of tissues and hormones or functions? A) adipose tissue--leptin to regulate a feeling of fullness B) thymus--use of iodine to make thyroxine for regulation of body growth C) pineal gland--production of melatonin and involvement in seasonal affective disorder D) pancreas--insulin for regulation of blood glucose levels E) pancreas--glucagon for regulation of blood glucose levels

Description : Which is NOT a correct association of tissues and hormones or functions? A) adipose tissue--leptin to regulate a feeling of fullness B) thymus--use of iodine to make thyroxine for ... insulin for regulation of blood glucose levels E) pancreas--glucagon for regulation of blood glucose levels

Last Answer : B) thymus--use of iodine to make thyroxine for regulation of body growth

Reduction in pH of blood will (a) decrease the affinity of haemoglobin with oxygen (b) release bicarbonate ions by the liver (c) reduce the rate of heartbeat (d) reduce the blood supply to the brain.

Description : Reduction in pH of blood will (a) decrease the affinity of haemoglobin with oxygen (b) release bicarbonate ions by the liver (c) reduce the rate of heartbeat (d) reduce the blood supply to the brain.

Last Answer : (a) decrease the affinity of haemoglobin with oxygen

In regard to HIV infection, which of the following is the earliest finding? A. Kaposi sarcoma on the palate B. Reduced haemoglobin C. Infection with pneumocystic carinii D. Reduction in white cells count E. B cell lymphoma

Description : In regard to HIV infection, which of the following is the earliest finding? A. Kaposi sarcoma on the palate B. Reduced haemoglobin C. Infection with pneumocystic carinii D. Reduction in white cells count E. B cell lymphoma

Last Answer : D. Reduction in white cells count

The symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) Inceased vascular permeability of bronchial tissue (d) Decreased calcium influx into the mast cell (e) Decreased prostaglandin production

Description : The symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) ... bronchial tissue (d) Decreased calcium influx into the mast cell (e) Decreased prostaglandin production

Last Answer : Ans: A

Which one of the following is the correct statement for respiration in humans? (a) Cigarette smoking may lead to inflammation of bronchi. (b) Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspiration. (c) Workers in grinding and stone-breaking industries may suffer from lung fibrosis. (d) About 90% of carbon dioxide (CO2) is carried by haemoglobin as carbamino-haemoglobin.

Description : Which one of the following is the correct statement for respiration in humans? (a) Cigarette smoking may lead to inflammation of bronchi. (b) Neural signals from pneumotoxic centre in pons region ... . (d) About 90% of carbon dioxide (CO2) is carried by haemoglobin as carbamino-haemoglobin.

Last Answer : (c) Workers in grinding and stone-breaking industries may suffer from lung fibrosis.

Which one of the following is the correct statement for respiration in humans ? (1) About 90% of carbon dioxide (CO2 ) is carried by haemoglobin as carbamino-haemoglobin (2) Cigarette smoking may lead to inflammation of bronchi (3) Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspiration (4) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis.

Description : Which one of the following is the correct statement for respiration in humans ? (1) About 90% of carbon dioxide (CO2 ) is carried by haemoglobin as carbamino-haemoglobin (2) Cigarette smoking ... of inspiration (4) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis.

Last Answer : (4) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis.

Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Description : Which one of the following is NOT true of exotoxins? a. They are proteins. b. They are part of cell wall structure. c. They are released from live bacterial cells. d. They trigger antibody production.

Last Answer : d. They trigger antibody production.

Haemophilia is a genetic disorder which lead to – (1) decrease in haemoglobin level (2) rheumatic heart disease (3) decrease in WBC (4) non-clotting of blood

Description : Haemophilia is a genetic disorder which lead to – (1) decrease in haemoglobin level (2) rheumatic heart disease (3) decrease in WBC (4) non-clotting of blood

Last Answer : (4) non-clotting of blood Explanation: Haemophilia is a mostly inherited genetic disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding.

Content of haemoglobin `//` 100 ml of Blood `:-`

Description : Content of haemoglobin `//` 100 ml of Blood `:-`

Last Answer : Content of haemoglobin `//` 100 ml of Blood `:-` A. 15 gm B. 20 gm C. 10gm D. 5 gm

The haemoglobin content per 100 mL of blood of a normal healthy human adult is (a) 5 - 11 gm (b) 25 - 30 gm (c) 17 - 20 gm (d) 12 - 16 gm.

Description : The haemoglobin content per 100 mL of blood of a normal healthy human adult is (a) 5 - 11 gm (b) 25 - 30 gm (c) 17 - 20 gm (d) 12 - 16 gm.

Last Answer : (d) 12 - 16 gm.

Which of the following statements concerning abnormalities of the haemoglobin molecule is true? 1) Alpha thalassaemia is due to a deficiency of beta-chain production 2) HbS is caused by a single base mutation on the beta-chain 3) genes for the alpha and beta chains are located on the same chromosome 4) in thalassaemia persistance of HbF is an adverse prognostic sign 5) oliguneoclitide probes may assist in the diagnosis of haemoglobinopathies

Description : Which of the following statements concerning abnormalities of the haemoglobin molecule is true? 1) Alpha thalassaemia is due to a deficiency of beta-chain production 2) HbS is caused by a ... is an adverse prognostic sign 5) oliguneoclitide probes may assist in the diagnosis of haemoglobinopathies

Last Answer : Answers-2 Alpha Thalassaemia is due to abnormalities of the alpha chain. Persistence of HbF has survival advnatages in severely affected subjects. C-alpha 16, beta 11. e-Hb electrophoresis(Dr Shu Ho)

I have hypotony and a damaged retina, also some optic nerve damage, although I had a little sight until the hypotony. Any hope for stem cell treatment?

Description : I have hypotony and a damaged retina, also some optic nerve damage, although I had a little sight until the hypotony. Any hope for stem cell treatment?

Last Answer : stem cell treatment as of the moment is a conservative issue whether to continue allowing it or totally ban it. however the answer is yes, almost anything is possible through stem cell research, believe it or not the stem cell treatment could even be a way of stopping aging, all the more hypotony.

The neurohormonal arm of the stress response is well defined. Less is known about the inflammatory arm mediated primarily by cytokines. Which of the following statement(s) is/are true concerning this arm of the surgical stress response? a. Cytokines primarily work locally via direct cell-to-cell communication b. Cytokines are never detectable in the systemic bloodstream c. Cytokines are produced only by immune cells attracted to the site of injury d. Cytokine release may stimulate the release of other cytokines leading to an important cascade of events

Description : The neurohormonal arm of the stress response is well defined. Less is known about the inflammatory arm mediated primarily by cytokines. Which of the following statement(s) is/are true ... Cytokine release may stimulate the release of other cytokines leading to an important cascade of events

Last Answer : Answer: a, d Cytokines, which are produced at the site of injury by endothelial cells and by diverse immune cells throughout the body, also occupy a pivotal position in the stress response ... act as hormones and spill over into the systemic circulation and become detectable in the bloodstream

Grafted kidney may be rejected in a patient due to (a) passive immune response (b) innate immune response (c) humoral immune response (d) cell-mediated immune response.

Description : Grafted kidney may be rejected in a patient due to (a) passive immune response (b) innate immune response (c) humoral immune response (d) cell-mediated immune response.

Last Answer : (d) cell-mediated immune response.

What type of immune cell may control IgE-mediated hypersensitivities? a. Suppressor T cells b. Plasma cells c. Cytotoxic T cells d. Neutrophils

Description : What type of immune cell may control IgE-mediated hypersensitivities? a. Suppressor T cells b. Plasma cells c. Cytotoxic T cells d. Neutrophils

Last Answer : a. Suppressor T cells

Which of the following is NOT correct about hormones? A) Hormones are generally found across the animal kingdom. B) Hormones may be used at a distance from where the hormone is made. C) Hormones have a slower effect than that mediated by the nervous system. D) Hormones bind to receptor sites at a target cell. E) Hormones are directed to the target organ and avoid contact with non-target cells.

Description : Which of the following is NOT correct about hormones? A) Hormones are generally found across the animal kingdom. B) Hormones may be used at a distance from where the hormone is made. C) ... target cell. E) Hormones are directed to the target organ and avoid contact with non-target cells.

Last Answer : E) Hormones are directed to the target organ and avoid contact with non-target cells.

Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation (B) Cavitation may be caused due to boiling of liquid by decreasing the pressure resulting in formation & collapse of vapor cavities (C) Cavitation begins at higher static pressure and lower velocity in larger diameter pipelines resulting in audible noise(D) Large scale cavitation cannot damage pipeline, restrict fluid flow anddamage steam turbine blades

Description : Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation ... (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Last Answer : (D) Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine blades

Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may be generated from activated neutrophils and during reperfusion following a period of ischemia. C. The deleterious effects of oxidants include lipid peroxidation and cell membrane damage, oxidative damage to DNA, and inhibition of adenosine triphosphate (ATP) synthesis. D. The mechanism of ischemia-reperfusion injury involved the catalytic production of superoxide anion (O 2•) by the enzyme xanthine oxidase.

Description : Which of the following statements are true of oxidants? A. In addition to their pathophysiologic roles in inflammation, injury, and infection, oxidants also have physiologic roles. B. Oxidants may ... involved the catalytic production of superoxide anion (O 2 ) by the enzyme xanthine oxidase.

Last Answer : Answer: ABCD DISCUSSION: Oxidants are reactive oxygen metabolites that have both physiologic and pathophysiologic roles. As potent oxidizing agents, oxidants are involved in cytochrome P ... leukocyte infiltration and activation, causing further tissue damage by the release of cytotoxic proteases

Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Description : Role of CFC present in atmosphere is to a) Reduction in ozone b) Ozone formation c) Formation of leg haemoglobin a) Enhance chlorophyll formation.

Last Answer : a) Reduction in ozone

Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land? a. It greatly increases the crop production b. It may lead to crop yield loss c. It raises the water table d. It fills the air spaces in the soil with water

Description : Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land? a. It greatly increases the crop ... c. It raises the water table d. It fills the air spaces in the soil with water

Last Answer : b. It may lead to crop yield loss

Blood pressure is controlled by – (1) Adrenal gland (2) Thyroid gland (3) Thymus (4) Corpus luteum

Description : Blood pressure is controlled by – (1) Adrenal gland (2) Thyroid gland (3) Thymus (4) Corpus luteum

Last Answer : (1) Adrenal gland Explanation: Adrenaline directly affects, regulates and determines the body's ability to maintain a healthy blood pressure. When the adrenal gland becomes damaged or ... greatly increases blood pressure levels, causing severe headaches, weight loss and other serious problems.

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

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

Which statement is true for WBC? (a) Non-nucleated (b) In deficiency, cancer is caused (c) Manufactured in thymus (d) Can squeeze through blood capillaries

Description : Which statement is true for WBC? (a) Non-nucleated (b) In deficiency, cancer is caused (c) Manufactured in thymus (d) Can squeeze through blood capillaries

Last Answer : (d) Can squeeze through blood capillaries

Which is NOT a correct consequence of surgical removal of portions of these glands? A) adrenal cortex--bronzing of skin, no glucose at stress, dehydration and death B) thymus--decrease in sex drive and changes in secondary sexual characteristics C) parathyroid glands--drop in blood calcium level and tetany (muscles shake) D) ovaries--alteration in menstrual cycle and change in secondary sex characteristics E) adult thyroid--low pulse rate and body temperature and lethargy

Description : Which is NOT a correct consequence of surgical removal of portions of these glands? A) adrenal cortex--bronzing of skin, no glucose at stress, dehydration and death B) thymus--decrease ... change in secondary sex characteristics E) adult thyroid--low pulse rate and body temperature and lethargy

Last Answer : B) thymus--decrease in sex drive and changes in secondary sexual characteristics

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

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 :  thymus by lymphocytes

Blood pressure is controlled by (1) Adrenal gland (2) Thyroid gland (3) Thymus (4) Corpus Luteum

Description : Blood pressure is controlled by (1) Adrenal gland (2) Thyroid gland (3) Thymus (4) Corpus Luteum

Last Answer : Adrenal gland

Which of the following is correct for CD8 T cells? A- CD8 T cells only recognize virus-infected cells B- CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells C- In the thymus, CD8 T cells undergo positive selection only, whereas CD4 T cells undergo negative selection only D- CD8 T cells can kill individual virus-infected cells in a contact dependent fashion

Description : Which of the following is correct for CD8 T cells? A- CD8 T cells only recognize virus-infected cells B- CD8 T cell receptor recognizes epitopes that are also commonly recognized by B cells ... selection only D- CD8 T cells can kill individual virus-infected cells in a contact dependent fashion

Last Answer : CD8 T cells can kill individual virus-infected cells in a contact dependent fashion

Which of the following regulates lipolysis in adipocytes? (A) Activation of fatty acid synthesis mediated by CAMP (B) Glycerol phosphorylation to prevent futile esterification of fatty acids (C) Activation of triglyceride lipase as a result of hormone stimulated increases in CAMP levels (D) Activation of CAMP production by Insulin

Description : Which of the following regulates lipolysis in adipocytes? (A) Activation of fatty acid synthesis mediated by CAMP (B) Glycerol phosphorylation to prevent futile esterification of fatty acids (C) ... result of hormone stimulated increases in CAMP levels (D) Activation of CAMP production by Insulin

Last Answer : Answer : C

The Symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) Increased vascular permeability of bronchial tissue (d) Decreased calcium influx into the mast cells (e) Decreased prostaglandin production

Description : The Symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) ... bronchial tissue (d) Decreased calcium influx into the mast cells (e) Decreased prostaglandin production

Last Answer : Ans: A

The plasmid-mediated properties is/are A.fermentation of lactose B.production of enterotoxinC.resistance to antibiotics D.all of these

Description : The plasmid-mediated properties is/are A.fermentation of lactose  B.production of enterotoxin C.resistance to antibiotics  D.all of these

Last Answer : D.all of these

The plasmid-mediated properties is/are A- fermentation of lactose B- production of enterotoxin C- resistance to antibiotics D- all of these

Description : The plasmid-mediated properties is/are A- fermentation of lactose B- production of enterotoxin C- resistance to antibiotics D- all of these

Last Answer : all of these

The following kinin action is mediated primarily by the kinin B1 receptor: A. Intestinal contraction B. Bronchoconstriction C. EDRF release and vasodilatation D. Production of Interleukin, TNFα and other inflammatory mediators

Description : The following kinin action is mediated primarily by the kinin B1 receptor: A. Intestinal contraction B. Bronchoconstriction C. EDRF release and vasodilatation D. Production of Interleukin, TNFα and other inflammatory mediators

Last Answer : . Production of Interleukin, TNFα and other inflammatory mediators