The activity of kinins is modulated by (A) Prostaglandins (B) Ca++ (C) Increased cAMP level (D) Increased cGMP level

The activity of kinins is modulated by (A) Prostaglandins (B) Ca++ (C) Increased cAMP level (D) Increased cGMP level
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Cyclooxygenase-1 and –2 are responsible for (a) The synthesis of prostaglandins from arachidonate (b) The synthesis of leukotrienes from arachidonate (c) The conversion of ATP to cAMP (d) The metabolic degradation of cAMP (e) The conversion of GTP to cGMP

Description : Cyclooxygenase-1 and –2 are responsible for (a) The synthesis of prostaglandins from arachidonate (b) The synthesis of leukotrienes from arachidonate (c) The conversion of ATP to cAMP (d) The metabolic degradation of cAMP (e) The conversion of GTP to cGMP

Last Answer : Ans: A

The catabolite repression is mediated by a catabolite gene activator protein (CAP) in conjunction with (A) AMP (B) GMP (C) cAMP (D) Cgmp

Description : The catabolite repression is mediated by a catabolite gene activator protein (CAP) in conjunction with (A) AMP (B) GMP (C) cAMP (D) Cgmp

Last Answer : Answer : C

Vasoconstrictor effect of ADH is mediated by (A) cAMP (B) cGMP (C) Protein kinase C (D) Angiotensin II

Description : Vasoconstrictor effect of ADH is mediated by (A) cAMP (B) cGMP (C) Protein kinase C (D) Angiotensin II

Last Answer : Answer : C

Binding of catecholamines to α2− adrenergic receptors (A) Increases the intracellular concentration of cAMP (B) Increases the intracellular concentration of cGMP (C) Decreases the intracellular concentration of cAMP (D) Decreases the intracellular concentration of cGMP

Description : Binding of catecholamines to α2− adrenergic receptors (A) Increases the intracellular concentration of cAMP (B) Increases the intracellular concentration of cGMP (C) Decreases the intracellular concentration of cAMP (D) Decreases the intracellular concentration of cGMP

Last Answer : Answer : C

Which one of the following is not a secondary messenger in hormone action? (a) cAMP (b) cGMP (c) Calcium (d) Sodium

Description : Which one of the following is not a secondary messenger in hormone action? (a) cAMP (b) cGMP (c) Calcium (d) Sodium

Last Answer : d) Sodium

Prostaglandins lower camp in (A) Adipose tissue (B) Lungs (C) Platelets (D) Adenohypophysis

Description : Prostaglandins lower camp in (A) Adipose tissue (B) Lungs (C) Platelets (D) Adenohypophysis

Last Answer : Answer : A

When a photon strikes the rhodopsin: a. bleaching occurs b. retinal molecules are bound to rhodopsin c. the intracellular cGMP is increased d. the sodium ion channels are closed

Description : When a photon strikes the rhodopsin: a. bleaching occurs b. retinal molecules are bound to rhodopsin c. the intracellular cGMP is increased d. the sodium ion channels are closed

Last Answer : the sodium ion channels are closed

The second messenger for many hormones is (A) ATP (B) cyclic AMP (C) cGMP (D) UTP HORMONE METABOLISM 227

Description : The second messenger for many hormones is (A) ATP (B) cyclic AMP (C) cGMP (D) UTP HORMONE METABOLISM 227

Last Answer : Answer : B

Action of kinins is to (A) Increase salt excretion (B) Decrease salt retention (C) Decrease water retention (D) Increase both salt and water excretion

Description : Action of kinins is to (A) Increase salt excretion (B) Decrease salt retention (C) Decrease water retention (D) Increase both salt and water excretion

Last Answer : Answer : D

Insulin decreases the activity of (A) cAMP dependent protein kinase (B) HMG CoA-reductas (C) Phosphodiesterase (D) Acetyl CoA-carboxylase

Description : Insulin decreases the activity of (A) cAMP dependent protein kinase (B) HMG CoA-reductas (C) Phosphodiesterase (D) Acetyl CoA-carboxylase

Last Answer : Answer : A

Glycogenoloysis is increased by (A) Glucagon (B) Insulin (C) Epinephrine (D) cAMP

Description : Glycogenoloysis is increased by (A) Glucagon (B) Insulin (C) Epinephrine (D) cAMP

Last Answer : Answer : B

Activity of an enzyme can be modulated by change of

Description : Activity of an enzyme can be modulated by change of

Last Answer : pH

Activity of an enzyme can be modulated by change of – (1) pH (2) Light (3) Humidity (4) Rainfall

Description : Activity of an enzyme can be modulated by change of – (1) pH (2) Light (3) Humidity (4) Rainfall

Last Answer : (1) pH Explanation: Changes in pH which can accompany metabolic process such as respiration (aerobic glycolysis for example) can alter the conformation of an enzyme and hence enzyme activity. The ... ) which can lead to an alteration in the delicate balance of forces that affect protein structure

Activity of an enzyme can be modulated by change of (1) pH (2) Light (3) Humidity (4) Rainfall

Description : Activity of an enzyme can be modulated by change of (1) pH (2) Light (3) Humidity (4) Rainfall

Last Answer : pH

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

Description : 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 ... include vasodilatation, vasoconstriction, increased vascular permeability and both chemotaxis and chemoattractant inhibition

Last Answer : Answer: b, d The eicosanoids are derived from arachidonic acid (eicosatetraenoic acid) and consist of prostaglandins, thromboxanes, leukotrienes and lipoxins. The eicosanoids are not ... nervous system d. Mononuclear phagocytes release a variety of proinflammatory cytokines and growth factors

The primary mechanism by which prostaglandins promote ulcer healing is: A. Inhibition of gastric acid secretion B. Augmentation of bicarbonate buffered mucus layer covering gastroduodenal mucosa C. Increased bicarbonate secretion in gastric juice D. Increased turnover of gastric mucosal cell

Description : The primary mechanism by which prostaglandins promote ulcer healing is: A. Inhibition of gastric acid secretion B. Augmentation of bicarbonate buffered mucus layer covering gastroduodenal mucosa C. Increased bicarbonate secretion in gastric juice D. Increased turnover of gastric mucosal cell

Last Answer : B. Augmentation of bicarbonate buffered mucus layer covering gastroduodenal mucosa

Actions of oxytocin include the following except: A. Vasoconstriction B. Increased water reabsorption in renal collecting ducts C. Contraction of mammary myoepithelium D. Release of prostaglandins from endometrium

Description : Actions of oxytocin include the following except: A. Vasoconstriction B. Increased water reabsorption in renal collecting ducts C. Contraction of mammary myoepithelium D. Release of prostaglandins from endometrium

Last Answer : A. Vasoconstriction

Kinins?

Description : Kinins?

Last Answer : DefinitionKinins are proteins in the blood that affect certain muscle contractions and blood pressure (especially low blood pressure).They also:Increase blood flow throughout the bodyMake it easier for fluids to ... , eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 45.

Which of the following activates Hageman factor in blood clotting? B A. Kinins B. Negatively charged surfaces C. Complement C5a D. Positively charged collagen

Description : Which of the following activates Hageman factor in blood clotting? B A. Kinins B. Negatively charged surfaces C. Complement C5a D. Positively charged collagen

Last Answer : Negatively charged surfaces

Leaf senescence can be retarded by the application of : a. Auxins b. Gibberellins c. Kinins d. Abscicic acid

Description : Leaf senescence can be retarded by the application of : a. Auxins b. Gibberellins c. Kinins d. Abscicic acid

Last Answer : Kinins

________ can release lateral buds from apical dominance : a. Auxins b. Gibberellins c. Kinins d. None of above

Description : ________ can release lateral buds from apical dominance : a. Auxins b. Gibberellins c. Kinins d. None of above

Last Answer : Kinins

________ have ability to alter the sex of the flowers: a. Auxins b. Gibberellins c. Kinins d. None of above

Description : ________ have ability to alter the sex of the flowers: a. Auxins b. Gibberellins c. Kinins d. None of above

Last Answer : Gibberellins

Direction of plant growth is controlled by: a. Auxins b. Gibberellins c. Kinins d. All of above

Description : Direction of plant growth is controlled by: a. Auxins b. Gibberellins c. Kinins d. All of above

Last Answer : Auxins

Compounds possessing hormone like properties which have small molecular weight, are termed as : a. Auxins b. Gibberellins c. Kinins d. None of these

Description : Compounds possessing hormone like properties which have small molecular weight, are termed as : a. Auxins b. Gibberellins c. Kinins d. None of these

Last Answer : Kinins

(d) Rs 1.50 Q.61. CA Co manufactures a single product and has drawn up the following flexed budget for the year. 60% 70% 80% Rs Rs Rs Direct materials 120,000 140,000 160,000 Direct labour 90,000 105,000 120,000 Production overheads 54,000 58,000 62,000 Other overheads 40,000 40,000 40,000 Total Cost 304,000 343,000 382,000 What would be the total cost in a budget that is prepared at the 77% level of activity? (a) Rs 330,300 (b) Rs 370,300 (c) Rs 373,300 (d) Rs 377,300

Description : Q.61. CA Co manufactures a single product and has drawn up the following flexed budget for the year.  60% 70% 80%  Rs Rs Rs Direct materials 120,000 140,000 160,000 Direct labour 90,000 105,000 120,000 Production ... activity? (a) Rs 330,300 (b) Rs 370,300 (c) Rs 373,300 (d) Rs 377,300

Last Answer : (b) Rs 370,300

Parathyroid hormone (A) Is released when serum Ca++ is too high (B) Inactivates vitamin D (C) Is secreted when Ca++ is too low (D) Depends on vitamin K for adequate activity

Description : Parathyroid hormone (A) Is released when serum Ca++ is too high (B) Inactivates vitamin D (C) Is secreted when Ca++ is too low (D) Depends on vitamin K for adequate activity

Last Answer : Answer : C

Which mineral element controls the activity of Nitrate reductase ? (A) Fe (B) Mo (C) Zn (D) Ca

Description : Which mineral element controls the activity of Nitrate reductase ? (A) Fe (B) Mo (C) Zn (D) Ca

Last Answer : Answer : A

In Vitamin D poisoning (hyper-vitaminosis) (A) Both serum and urinary “Ca” (B) The serum Ca is low and urinary calcium high (C) The serum “Ca” is increased and urinary “Ca” is normal (D) Both serum and urinary “Ca” are low

Description : In Vitamin D poisoning (hyper-vitaminosis) (A) Both serum and urinary “Ca” (B) The serum Ca is low and urinary calcium high (C) The serum “Ca” is increased and urinary “Ca” is normal (D) Both serum and urinary “Ca” are low

Last Answer : Answer : A

The ratio of the level of the modulated output of a transmitter under conditions of standard test modulation to the level of the demodulated output with no modulation applied both measured with the same bandwidth. A. Reference audio output B. None of these C. Audio frequency response D. Residual noise level

Description : The ratio of the level of the modulated output of a transmitter under conditions of standard test modulation to the level of the demodulated output with no modulation applied both measured with the ... . Reference audio output B. None of these C. Audio frequency response D. Residual noise level

Last Answer : D. Residual noise level

In_____ transmission, thephaseof the carrier signal is modulated to follow the changingvoltage level (amplitude) of the modulating signal. A) AM B) PM C) FM D) none of the above

Description : In_____ transmission, thephaseof the carrier signal is modulated to follow the changingvoltage level (amplitude) of the modulating signal. A) AM B) PM C) FM D) none of the above

Last Answer : PM

In_____ transmission, the frequency of the carrier signal is modulated to follow the changing voltage level (amplitude)of the modulating signal. The peak amplitude and phase of the carrier signal remainconstant,but as the amplitudeof the information signal changes, thefrequency of thecarrier changes correspondingly. A) AM B) PM C) FM D) none of the above

Description : In_____ transmission, the frequency of the carrier signal is modulated to follow the changing voltage level (amplitude)of the modulating signal. The peak amplitude and phase of the carrier signal remainconstant,but as ... of thecarrier changes correspondingly. A) AM B) PM C) FM D) none of the above

Last Answer : FM

The amplifiers following the modulated stage in a low level modulation AM system be

Description : The amplifiers following the modulated stage in a low level modulation AM system be  (A) linear amplifier (B) harmonic generators (C) class C power amplifiers (D) class untuned amplifiers

Last Answer : The amplifiers following the modulated stage in a low level modulation AM system be class C power amplifiers

Which one of the following hormones is derived most completely from tyrosine? (A) Glucagon (B) Thyroxine (C) Insulin (D) Prostaglandins

Description : Which one of the following hormones is derived most completely from tyrosine? (A) Glucagon (B) Thyroxine (C) Insulin (D) Prostaglandins

Last Answer : Answer : B

A cup of strong coffee would be expected to (A) Interfere with synthesis of prostaglandins (B) Decrease the effects of Glucagon (C) Enhance the effects of epinephrine (D) Provide the vitamin nicotinic acid

Description : A cup of strong coffee would be expected to (A) Interfere with synthesis of prostaglandins (B) Decrease the effects of Glucagon (C) Enhance the effects of epinephrine (D) Provide the vitamin nicotinic acid

Last Answer : Answer : C

Which of the following is used for inducing labour? (A) Prostaglandins (B) Prostacyclins (C) Vasopressin (D) Thromboxanes

Description : Which of the following is used for inducing labour? (A) Prostaglandins (B) Prostacyclins (C) Vasopressin (D) Thromboxanes

Last Answer : Answer : A

The suffix number in the names of prostaglandins gives the number of (A) OH groups (B) Double bonds (C) Acid groups (D) Ketoacids

Description : The suffix number in the names of prostaglandins gives the number of (A) OH groups (B) Double bonds (C) Acid groups (D) Ketoacids

Last Answer : Answer : B

Which of tne of the following scientists has not worked in the field of prostaglandins? (A) Voneuler (B) Sultan Karim (C) Andre robet (D) Kendal

Description : Which of tne of the following scientists has not worked in the field of prostaglandins? (A) Voneuler (B) Sultan Karim (C) Andre robet (D) Kendal

Last Answer : Answer : D

Prostaglandins are (A) C2 unsaturated acids (B) C27 saturated alcohols (C) C20 saturated acids (D) C27 saturated alcohols

Description : Prostaglandins are (A) C2 unsaturated acids (B) C27 saturated alcohols (C) C20 saturated acids (D) C27 saturated alcohols

Last Answer : Answer : A

Which of the following property of prostaglandins has been utilized by chinicians in hospital for (A) Inducing fever (B) Causing inflammation (C) Effecting smooth muscle contraction (D) Disaggregation of spermatozoa

Description : Which of the following property of prostaglandins has been utilized by chinicians in hospital for (A) Inducing fever (B) Causing inflammation (C) Effecting smooth muscle contraction (D) Disaggregation of spermatozoa

Last Answer : Answer : C

Richest source of prostaglandins in a human male is (A) Blood (B) Urine (C) Semen (D) C.S.F.

Description : Richest source of prostaglandins in a human male is (A) Blood (B) Urine (C) Semen (D) C.S.F.

Last Answer : Answer : C

Aspirin blocks the synthesis of (A) Prostaglandins only (B) Prostacyclins only (C) Thromboxanes only (D) All of these

Description : Aspirin blocks the synthesis of (A) Prostaglandins only (B) Prostacyclins only (C) Thromboxanes only (D) All of these

Last Answer : Answer : D

A cup of strong coffee would be expected to (A) Interfere with the synthesis of prostaglandins (B) Decrease the effect of glucagon (C) Enhance the effect of epinephrine (D) Provide the vitamin nicotinic acid

Description : A cup of strong coffee would be expected to (A) Interfere with the synthesis of prostaglandins (B) Decrease the effect of glucagon (C) Enhance the effect of epinephrine (D) Provide the vitamin nicotinic acid

Last Answer : Answer : C

From arachidonate, synthesis of prostaglandins is catalysed by (A) Cyclooxygenase (B) Lipoxygenase (C) Thromboxane synthase (D) Isomerase

Description : From arachidonate, synthesis of prostaglandins is catalysed by (A) Cyclooxygenase (B) Lipoxygenase (C) Thromboxane synthase (D) Isomerase

Last Answer : Answer : A

Cholesterol is the precursor for the biosynthesis of (A) fatty acid (B) prostaglandins (C) bile acids (D) sphingmyelin

Description : Cholesterol is the precursor for the biosynthesis of (A) fatty acid (B) prostaglandins (C) bile acids (D) sphingmyelin

Last Answer : Answer : C

Acrolein Test is positive for (A) Glycerol (B) Prostaglandins (C) Carbohydrates (D) Proteins

Description : Acrolein Test is positive for (A) Glycerol (B) Prostaglandins (C) Carbohydrates (D) Proteins

Last Answer : Answer : A

All the following are functions of prostaglandins except (A) Lowering of B.P (B) Introduction of labour (C) Anti inflammatory (D) Prevention of myocardial infraction

Description : All the following are functions of prostaglandins except (A) Lowering of B.P (B) Introduction of labour (C) Anti inflammatory (D) Prevention of myocardial infraction

Last Answer : Answer : D

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

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

Last Answer : Answer : D

All active prostaglandins have atleast one double bond between positions: (A) 7 and 8 (B) 9 and 10 (C) 11 and 12 (D) 13 and 14 FATS AND FATTY ACID METABOLISM 95

Description : All active prostaglandins have atleast one double bond between positions: (A) 7 and 8 (B) 9 and 10 (C) 11 and 12 (D) 13 and 14 FATS AND FATTY ACID METABOLISM 95

Last Answer : Answer : A

Prostaglandins have a common structure based on prostanoic acid which contains carbon atoms: (A) 12 (B) 16 (C) 18 (D) 20

Description : Prostaglandins have a common structure based on prostanoic acid which contains carbon atoms: (A) 12 (B) 16 (C) 18 (D) 20

Last Answer : Answer : D

Prostaglandins are liberated in the circulation by the stimulation of (A) Anterior pituitary glands (B) Posterior pituitary glands (C) Adrenal gland (D) Thyroid gland

Description : Prostaglandins are liberated in the circulation by the stimulation of (A) Anterior pituitary glands (B) Posterior pituitary glands (C) Adrenal gland (D) Thyroid gland

Last Answer : Answer : C