With regard to interleukins:
a. IL-2 is produced mainly by CD8+ cells
b. IL-3 stimulates the growth of haemopoietic stem cells
c. IL-4 increases the production of IL-1
d. IL-6 stimulates acute phase protein synthesis

1 Answer

Answer :

IL-6 stimulates acute phase protein synthesis

Related questions

Description : The following are true about interleukins 1 (IL-1): a. it is produced mainly by the neutrophils b. it stimulates the proliferation of B and T cells c. it increases bone production d. it acts on the hypothalamus to cause fever

Last Answer : it stimulates the proliferation of B and T cell

Description : Which of the following statements regarding fibroblasts and their function in wound healing are true? a. IL-1 has both inhibitory and promotional effects on fibroblast growth b. TNFa ... EGF (epithelial growth factor) has been demonstrated to accelerate epidermal regeneration in cutaneous wounds

Last Answer : Answer: a, d IL-1 appears to be important in the process of normal wound repair. IL-1 has been shown to stimulate skin fibroblast and keratinocyte growth, as well as ... that recombinant EGF enhances keratinocyte migration. EGF is also a potent chemoattractant for granulation tissue fibroblasts

Description : Virus infected cells produce a set of cytokine proteins called _____ that "alert" surrounding cells to the viral threat. a. Interleukin-1 (IL-1) b. Interferon. c. Toll Like Receptors (TLR) d. Acute Phase Proteins

Last Answer : b. Interferon.

Description : A pheromone is A) an endorphin released within the anterior pituitary. B) a growth factor related to the production of tumors. C) a product of a neurosecretory cell that acts on ... ) a regulatory hormone that stimulates or inhibits the release of hormones produced by other endocrine glands.

Last Answer : D) a chemical released by one animal to affect the behavior of another animal.

Description : Glucagon (A) Increases protein synthesis (B) Inhibits lipolysis in adipocytes (C) Increases gluconeogenesis in liver (D) Stimulates muscle glycogenolysis

Last Answer : Answer : C

Description : Cytokines with clearly defined actions in acute inflammation and early tissue injury include which of the following? a. Cysteine-X-Cysteine (C-X-C) chemokines b. Tumor Necrosis Factor (TNFa) c. Transforming Growth Factor-b (TGF-b) d. Interleukin-6 (IL-6) e. Platelet Derived Growth Factor (PDGF)

Last Answer : Answer: a, b, c, d, e Polypeptide mediators, such as TNFa and IL-1, are considered early response cytokines and are actively involved in the initiation of the ... of tissue repair. Thus, coagulation and platelet activation provide the initial foundation for subsequent cellular recruitment

Description : Which of the following statements regarding cytokines is incorrect? A. Cytokines act directly on target cells and may potentiate the actions of one another. B. Interleukin 1 (IL-1) ... organ dysfunction syndrome because of its multiple actions and the secondary cascades that it stimulates.

Last Answer : Answer: C DISCUSSION: Cytokines are soluble peptide molecules that are synthesized and secreted by a number of cell types in response to injury, inflammation, and infection. Cytokines, which ... is thought to play a central role in the stress response, particularly in response to endotoxemia

Description : Interleukin-6 is recognized as the cytokine primarily responsible for the alteration in hepatic protein synthesis recognized as the acute phase response. Which of the following statement(s) is/are true ... physiologic role of acute phase proteins are to reduce the systemic effects of tissue damage

Last Answer : Answer: c, d IL-6 is now recognized at the cytokine primarily responsible for the alteration in hepatic synthesis recognized as the acute phase response. Glucocorticoid hormones augment ... that generally inhibit the tissue destruction that is associated with the local initiation of inflammation

Description : Macrophages are professional antigen- presenting cells. The protein molecule through which theypresent antigen in human is A.actin B.interleukin C.HLA D.CD8

Last Answer : D.CD8

Description : Macrophages are professional antigen- presenting cells. The protein molecule through whichthey present antigen in human is A- actin B- nterleukin C- HLA D- .CD8

Last Answer : .CD8

Description : Select the correct matching of a hormone, its source and function. Hormone Source Function (a) Vasopressin Posterior Increases loss pituitary of water through urine (b) Norepine- Adrenal ... (d) Prolactin Posterior Regulates growth pituitary of mammary glands and milk formation in females

Last Answer : (b) Norepine- Adrenal Increases heart phrine medulla beat, rate of respiration and alterness

Description : With regard to insulin: a. it is a 51 amino acid peptide b. it is formed by removal of C-chain from proinsulin c. it is produced by the alpha cells of the pancreas d. it alters the rate of enzyme synthesis

Last Answer : it alters the rate of enzyme synthesis

Description : Glucagon: a. is a positive inotrope b. is produced by the beta cells of the pancreas c. stimulates production of free fatty acids in the blood d. its release is increased in starvation

Last Answer : its release is increased in starvation

Description : With regard to interferons: a. they are produced by B lymphocytes b. IFN-gamma is produced by cells infected with virus c. IFN-gamma increases MCH class I and II expression in antigen presenting cell d. IFN-gamma is produced by fibroblasts

Last Answer : IFN-gamma is produced by cells infected with virus

Description : With regard to cerebral autoregulation: a. cerebral blood flow is constant over a diastolic blood pressure of 60 to 140 mmHg b. autoregulation is lost during the acute phase of subarachnoid haemorrhage c. it is impaired in hypercapnia d. it is impaired in hypoxia

Last Answer : it is impaired in hypoxia

Description : Helper T cells release all the following except (A) Interleukins (B) Colony stimulating factors (C) Perforins (D) Tumour necrosis factor

Last Answer : Answer : C

Description : Helper T cells release (A) Interleukins (B) Colony stimulating factors (C) Tumour necrosis factor (D) All of these

Last Answer : Answer : B

Description : Cytotoxic T cells release (A) Perforins (B) Interleukins (C) Colony stimulating factors (D) Tumour necrosis factor

Last Answer : Answer : B

Description : The most important mechanism of antiinflammatory action of glucocorticoids is: A. Inhibition of lysosomal enzymes B. Restriction of recruitment of inflammatory cells at the site of inflammation C. Antagonism of action of interleukins D. Suppression of complement function

Last Answer : B. Restriction of recruitment of inflammatory cells at the site of inflammation

Description : Growth hormone increases (A) Protein synthesis (B) Lipogenesis (C) Glycogenolysis (D) All of these

Last Answer : Answer : A

Description : Antibacterial agents can be classified with regard to their structure, mechanism of action, and activity pattern against various types of bacterial pathogens. Which of the following ... are both bacteriostatic d. Sulfonamides and trimethoprim act synergistically to inhibit purine synthesis

Last Answer : Answer: a, b, d Penicillins, cephalosporins, and monobactams possess a b-lactam ring of some type and act to bind bacterial division plate proteins, thus inhibiting cell wall ... act in different mechanisms to inhibit protein synthesis, therefore two agents in combination act synergistically

Description : MHC Class III proteins include (A) Immunoglobulins (B) Components of complement system (C) T cells receptors (D) CD4 and CD8 proteins

Last Answer : Answer : D

Description : The following are true about antigen presenting cells (APC): a. Langerhan's cells are the antigen presenting cells of the epidermis b. CD8+ cells only recognize antigen presenting cells bearing ... necrosis factor alpha (TNF ) can turn endothelial cells into antigen presenting cells d. all above

Last Answer : all above

Description : The cytotoxic T cells have a_____ co-receptor while the helper T cells have a _____ co-receptor. a. CD8. CD4 b. CD4, CD8 c. MHCI, MHCII d. MHCII, MHCI

Last Answer : a. CD8. CD4

Description : Cytotoxic T-cells can be recognized by which of the following cell surface marker? A- CD4 B- CD7 C- CD8 D- CD9

Last Answer : CD8

Description : CD8 surface antigen is present in A- cytotoxic T cells B- .suppresssor T cells C- both (a) and (b) D- none of these

Last Answer : both (a) and (b)

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

Description : Which hormone stimulates the production of estrogen and progesterone? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone

Last Answer : C) gonadotropic hormones

Description : Which hormone stimulates the production of cortisol? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone

Last Answer : E) adrenocorticotropic hormone

Description : Identify the correct statement with regard to G1 phase (Gap 1) of interphase. (a) DNA synthesis or replication takes place. (b) Reorganisation of all cell components takes place. (c) Cell is metabolically active, grows but does not replicate its DNA. (d) Nuclear division takes place.

Last Answer : (c) Cell is metabolically active, grows but does not

Description : Answer: a, b, c, d Free oxygen radicals are chemical species that are intermediates in the normal process of cellular respiration. Oxidants that are free radicals have been implicated as initiators of ... a. C-reactive protein b. Serum amyloid c. a -Proteinase inhibitor d. Fibrinogen e. Albumin

Last Answer : Answer: a, b, c, d The acute-phase response is a series of homeostatic responses of the organism to tissue injury in infection and inflammation. After an inflammatory stimulus occurs, a number ... 30% to 50% of the level before injury. The reason for the decrease in production is poorly understood

Description : Assertion : All diploic bones of body are haemopoietic. Reason : Red bone marrow is present in the diploic bone.

Last Answer : Assertion : All diploic bones of body are haemopoietic. Reason : Red bone marrow is present in the ... . D. If both Assertion & Reason are false.

Description : Assertion : Epiphysis of long bone is haemopoietic Reason : In epiphysis yellow bone marrow is present which product blood corpuscles

Last Answer : Assertion : Epiphysis of long bone is haemopoietic Reason : In epiphysis yellow bone marrow is present ... D. If both Assertion & Reason are false.

Description : Select the incorrect statement. (a) LH and FSH decrease gradually during the follicular phase. (b) LH triggers secretion of androgens from the Leydig cells. (c) FSH stimulates the Sertoli cells which help in spermiogenesis. (d) LH triggers ovulation in ovary.

Last Answer : (a) LH and FSH decrease gradually during the follicular phase.

Description : What is the substance that stimulates the production of red blood cells? Which is the organ that secretes it? Under what conditions does this secretion increase?

Last Answer : The substance that stimulates the production of red blood cells by the bone marrow is erythropoietin. Erythropoietin is a hormone secreted by the kidneys. Its secretion is increased when there is deficient ... (as it occurs in high altitudes) or by internal diseases, as in pulmonary diseases.

Description : Select the option which correctly matches the endocrine gland with its hormone and its function. Endocrine Hormone Function gland (a) Placenta Estrogen Initiates secretion of the milk (b) Corpus ... of sperms (d) Ovary FSH Stimulates follicular development and the secretion of estrogens

Last Answer : (c) Leydig’s Androgen Initiates the cells production of sperms

Description : Which one of the following is a case of wrong matching? (a) Somatic – Fusion of two hybridization diverse cells (b) Vector DNA – Site for tRNA synthesis (c) Micropropagation – In vitro production of plants in large numbers (d) Callus – Unorganised mass of cells produced in tissue culture

Last Answer : (b) Vector DNA – Site for tRNA synthesis

Description : 9. Which one of the following is a case of wrong matching ? (1) Callus - Unorganised mass of cells produced in tissue culture (2) Somatic hybridization - Fusion of two diverse cells (3) Vector DNA - Site for t-RNA synthesis (4) Micropropagation - In vitro production of plants in large number

Last Answer : Vector DNA - Site for t-RNA synthesis

Description : Organisation of stem apex into corpus and tunica is determined mainly by (a) planes of cell division (b) regions of meristematic activity (c) rate of cell growth (d) rate of shoot tip growth.

Last Answer : (a) planes of cell division

Description : Organisation of stem apex into corpus and tunica is determined mainly by (a) planes of cell division (b) regions of meristematic activity (c) rate of cell growth (d) rate of shoot tip growth.

Last Answer : (a) planes of cell division

Description : Increasing evidence has implicated gram-negative bacterial lipopolysaccharide (LPS endotoxin) as the portion of the gram-negative bacterial cell membrane responsible for many, if not all the ... host, exerting deleterious effects on the host when excessive amounts reach the systemic circulation

Last Answer : Answer: a, b, d The LPS molecule exerts diverse effects on the mammalian host. Immunologic responses to LPS include nonspecific polyclonal B-cell proliferation, macrophage activation and ... deleterious effects on the host only after large amounts are secreted and reach the systemic circulation

Description : Which nucleic acid is mainly responsi- ble for the synthesis of protein?

Last Answer : Ribo nucleic Acid (RNA)

Description : Name the hormone which stimulates the synthesis and secretion of androgens from testis.

Last Answer : Name the hormone which stimulates the synthesis and secretion of androgens from testis.

Description : Name the hormone which stimulates the synthesis and secretion of thyroid hormones from the thyroid gland.

Last Answer : Name the hormone which stimulates the synthesis and secretion of thyroid hormones from the thyroid gland.

Description : Name the hypothalamic hormone which stimulates the pituitary synthesis and relased of gonadotrophins

Last Answer : Name the hypothalamic hormone which stimulates the pituitary synthesis and relased of gonadotrophins

Description : TSH stimulates the synthesis delete (A) Thyroxine (B) Adrenocorticoids (C) Epinephrine (D) Insulin

Last Answer : Answer : A

Description : Select the correct option describing gonadotropin activity in a normal pregnant female. (a) High level of FSH and LH stimulates the thickening of endometrium. (b) High level of FSH and LH ... synthesis of estrogen and progesterone. (d) High level of hCG stimulates the thickening of endometrium.

Last Answer : (c) High level of hCG stimulates the synthesis of estrogen and progesterone.

Description : Which of the following hormones is NOT correctly matched with its description? A) thymosin--aids in production of T cells B) thyroxin--needed for growth and development in vertebrates ... by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Last Answer : D) cortisol--lowers blood glucose level by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Description : TNF-ais an example of eicosanoids (a) Interleukins (b) Cytotoxic factors (c) Interferons (d) Colony stimulating factors

Last Answer : Ans: B

Description : In human body, the cell growth and differentiation are highly controlled and regulated, but in cancer cells. (a) there is breakdown of these regulatory mechanism leading to formation of benign and malignant ... is mutated and produced in less amount (d) DNA is mutated and produced in less amount

Last Answer : Ans:(a)