Biologically active metabolites of arachidonic acid include all of the following EXCEPT: C A. Leukotrienes B. Thyromboxane A2 C. Complement D. Prostaglandin

Biologically active metabolites of arachidonic acid include all of the following EXCEPT:
C
A. Leukotrienes
B. Thyromboxane A2
C. Complement
D. Prostaglandin
by

1 Answer

Answer :

Complement
by

Related questions

Biologically active metabolites of arachidonic acid include all of the following EXCEPT: C A. Leukotrienes (SRS) B. Thyromboxane A2 C. Complement D. None of these

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Last Answer : Complement

Inflammation is a complex tissue reaction that includes the release of cytokines, leukotrienes, prostaglandins, and peptides. Prostaglandins involved in inflammatory processes are produced from arachidonic acid by (a) Cyclooxygenase 1 (b) Cyclooxygenase 2 (c) Glutathione – S – transferase (d) Lipoxygenase (e) Phospholipase A2

Description : Inflammation is a complex tissue reaction that includes the release of cytokines, leukotrienes, prostaglandins, and peptides. Prostaglandins involved in inflammatory processes are produced from arachidonic acid by (a) ... 2 (c) Glutathione - S - transferase (d) Lipoxygenase (e) Phospholipase A2

Last Answer : Ans: B

The most important preformed mediator of allergic reactions is/are a. Prostaglandin b. Interleukin c. Histamine d. Leukotrienes

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Actions of prostaglandin E2 include the following except: A. Fall in blood pressure B. Bronchoconstriction C. Uterine contraction D. Inhibition of gastric acid secretion

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The following prostanoid is a potent inducer of platelet aggregation (a) Prostacyclin (b) Prostaglandin E2 (c) Prostaglandin D2 (d) Thromboxane A2

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The prostanoid that consistently constricts blood vessels is (a) Prostaglandin E2 (b) Prostaglandin F2a (c) Thromboxane A2 (d) Prostacyclin

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Last Answer : Ans: C

Which of the following eicosanoids is generated through the lipozygenase pathway ? (a) Prostaglandin E2 (b) Thromboxane A2 (c) Prostacyclin (d) Leukotriene C4

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Last Answer : Ans: D

A 60-year-old woman has glaucoma following cataract surgery. Which of the following can be used to reduce intraocular pressure? (a) Leukotriene LTD4 or its analogs (b) Prostaglandin E2 or its analogs (c) Prostaglandin F2a or its analogs (d) Slow-reacting substance of anaplylaxis (SRS-A) (e) Thromboxane A2 or its analogs

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A patient who has been taking quantities of aspirin might show increased post operative bleeding because aspirin inhibits:** A. Synthesis of thromboxane A2 and prevents platelet aggregation B. Synthesis of prostacyclin and prevents platelet aggregation C. Synthesis of prostaglandin and prevents production of blood platelets D. Thrombin and prevents formation of the fibrin network E. Increase the absorption of vitamin K and prevents synthesis of blood clotting factors

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Ventricular remodeling after myocardial infarction involves the mediation of: A. Angiotensin II B. Prostaglandin C. Bradykinin D. Thromboxane A2

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The following prostanoid is a potent inducer of platelet aggregation: A. Prostacyclin B. Prostaglandin E2 C. Prostaglandin D2 D. Thromboxane A2

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All the following are omega-6-fatty acids except (A) Linoleic acid (B) α-Linolenic acid (C) γ-Linolenic acid (D) Arachidonic acid

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Eicosanoids mediate inflammation in a variety of ways. Of the following statements, which are true with regard to this? a. Eicosanoids are stored in cytoplasmic granules for release after receptor mediated signaling b. Eicosanoids include prostaglandins, thromboxanes, leukotrienes and lipoxins c. Eicosanoids generally have a plasma half-life measured in hours d. Physiologic responses to eicosanoids include vasodilatation, vasoconstriction, increased vascular permeability and both chemotaxis and chemoattractant inhibition

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Which of the following is not essential fatty acid? (A) Oleic acid (B) Linoleic acid (C) Arachidonic acid (D) Linolenic acid

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Prostaglandins are synthesized in the body from (A) Myristic acid (B) Arachidonic acid (C) Stearic acid (D) Lignoceric acid

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The prostaglandins are synthesized from (A) Arachidonic acid (B) Oleic acid (C) Linoleic acid (D) Linolenic acid

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Arachidonic acid contains the number of double bonds: (A) 2 (B) 3 (C) 4 (D) 5

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Which of the following can be synthesized in the human body if precurors are available? (A) Oleic acid (B) Palmitoleic acid (C) Arachidonic acid (D) All of these

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A 20-carbon fatty acid among the following is (A) Linoleic acid (B) α -Linolenic acid (C) β -Linolenic acid (D) Arachidonic acid

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Which of the following is omega-3 polyunsaturated fatty acid? (A) Linoleic acid (B) α-Linolenic acid (C) γ-Linolenic acid (D) Arachidonic acid

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The number of double bonds in arachidonic acid is (A) 1 (B) 2 (C) 4 (D) 6

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What is the structure of arachidonic acid?

Description : What is the structure of arachidonic acid?

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Which is the saturated fatty acid of the following – a) Stearic acid b) Arachidonic acid c) Oleic acid d) Linoleic acid

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Inhibition of thromboxane synthesis by aspirin in platelets lasts for 5-7 days because: A. Aspirin persists in the body for 5-7 days B. Aspirin induced depletion of arachidonic acid lasts 5-7 days C. Regeneration of aspirin inhibited cyclooxygenase takes 5-7 days D. Platelets cannot generate fresh thromboxane synthetase and their turnover time is 5-7 days

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a2–adrenergic receptors are associated with following except (a) Increase in phospholipase C activity (b) Increase in potassium channel conductance (c) Decrease in calcium channel conductance (d) Increase in adenylyl cyclase activity

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Which of the following statements regarding the complement system are true? a. Complement activation yields products which are directly cytotoxic as well as products which act indirectly via activated leukocytes b. Complement products referred to as anaphylatoxins include C1, C3a, C4a, and C5a c. The principal role of C5a is in bacterial opsonization d. The alternative and classical pathways converge proximal to generating the membrane attack complex (C5b-9)

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Which one of the following hormones is modified amino acid? (a) Epinephrine (b) Progesterone (c) Prostaglandin (d) Estrogen

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Leukotrienes cause (A) Increase in capillary permeability (B) Aggregation of platelets (C) Bronchodilatation (D) None of these

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Last Answer : Answer : A

Lipo-oxygenase is required for the synthesis of (A) Prostaglandins (B) Leukotrienes (C) Thromboxanes (D) All of these

Description : Lipo-oxygenase is required for the synthesis of (A) Prostaglandins (B) Leukotrienes (C) Thromboxanes (D) All of these

Last Answer : Answer : B

Slow reacting Substance of Anaphylaxis is a mixture of (A) Prostaglandins (B) Prostacyclins (C) Thromboxanes (D) Leukotrienes

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Last Answer : Answer : D

Anti-inflammatory corticosteroids inhibit the synthesis of (A) Leukotrienes (B) Prostaglandins (C) Thromboxanes (D) All of these

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