Aldosterone increases Na+ reabsorption and K+ excretion in the renal collecting duct cells by: A. Inducing synthesis of Na+K+ATPase B. Inducing synthesis of amiloride sensitive Na+ channels C. Translocating Na+ channels from cytosolic site to luminal membrane D. All of the above

Aldosterone increases Na+ reabsorption and K+
excretion in the renal collecting duct cells by:
A. Inducing synthesis of Na+K+ATPase
B. Inducing synthesis of amiloride sensitive
Na+ channels
C. Translocating Na+ channels from cytosolic
site to luminal membrane
D. All of the above
by

1 Answer

Answer :

D. All of the above
by

Related questions

Aldosterone enhances Na+ reabsorption in renal tubules by: A. Stimulating carbonic anhydrase B. Activating Na+ K+ ATPase C. Inducing the synthesis of Na+ K+ ATPase D. Inducing renal prostaglandin synthesis

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Last Answer : C. Inducing the synthesis of Na+ K+ ATPase

Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase

Description : Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase

Last Answer : B. Electrogenic Na+ channels

The following diuretic acts on the luminal membrane of distal tubule and collecting ducts to inhibit electrogenic Na+ reabsorption so that K+ excretion is diminished and bicarbonate excretion is enhanced: A. Xipamide B. Isosorbide C. Triamterene D. Spironolactone

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Last Answer : C. Triamterene

hat is/are the consequence(s) of myocardial Na+ K+ ATPase inhibition by digoxin: A. Increased intracellular Na+ ion concentration B. Increased cytosolic Ca2+ ion concentration C. Increased intracellular K+ ion concentration D. Both ‘A’ and ‘B’ are correct

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Triamterene differs from spironolactone in that: A. It has greater natriuretic action B. Its K+ retaining action is not dependent on presence of aldosterone C. It acts from the luminal membrane side of the distal tubular cells D. Both ‘B’ and ‘C’ are correct

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Amiloride has the following effect on urinary cation excretion: A. Decreases both K+ and H+ ion excretion B. Decreases K+ excretion but increases H+ ion excretion C. Increases K+ but decreases Na+ excretion D. Decreases both Na+ and K+ excretion

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True statements about aldosterone include: a. it increases the amount of Na+-K+ ATPase in the target cells b. it reduces the sodium content of the sweat c. it increases the acidity of urine d. all above

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Furosemide acts by inhibiting the following in the renal tubular cell: A. Na+-K+-2Cl– cotransporter B. Na+-Cl– symporter C. Na+-H+ antiporter D. Na+ K+ ATPase

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Thiazide diuretics enhance K+ elimination in urine primarily by: A. Inhibiting proximal tubular K+ reabsorption B. Inhibiting Na+ K+-2Cl– cotransport in the ascending limb of loop of Henle C. Increasing the availability of Na+ in the distal tubular fluid to exchange with interstitial K+ D. Potentiating the action of aldosterone

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Secretion of K+ in the late distal tubule and collecting ducts of kidney depends on: A. Intracellular K+ content B. Unabsorbed Na+ load presented to the distal segment C. Aldosterone level D. All of the above

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e primary mechanism by which general anaesthetics produce their action is: A. Affecting receptor operated ion channels in cerebral neurones B. Blocking voltage sensitive Na+ channels in neuronal membrane C. Depressing metabolic activity of cerebral neurones D. Blocking production of high energy phosphates in the brain

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Angiotensin III is equipotent to angiotensin II in: A. Releasing aldosterone from adrenal cortex B. Promoting Na+ and water reabsorption by direct intrarenal action C. Causing vasoconstriction D. Contracting intestinal smooth muscle

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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

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Choose the correct statement about osmotic diuretics: A. They are large molecular weight substances which form colloidal solution B. Their primary site of action is collecting ducts in the kidney C. They increase water excretion without increasing salt excretion D. They can lower intraocular pressure

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Which part of the nephron in human kidney, serves the function of reabsorption of certain substances? (a) Glomerulus (b) Bowmans Capsule (c) Tubules (d) collecting duct

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The following are true about aldosterone: a. it is secreted by the adrenal medulla b. its secretion is stimulated by decreased blood volume c. it stimulates active reabsorption of sodium in the distal renal tubules. d. it causes increased secretion of potassium by the distal renal tubules.

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The following is not true of quinidine: A. It blocks myocardial Na+ channels primarily in the open state B. It has no effect on myocardial K+ channels C. It produces frequency dependent blockade of myocardial Na+ channels D. It delays recovery of myocardial Na+ channels

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An important finding in glycinuria is (A) Excess excretion of oxalate in the urine (B) Deficiency of enzyme glycinase (C) Significantly increased serum glycine level (D) Defect in renal tubular reabsorption of glycine

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The following is true of mannitol except: A. It inhibits solute reabsorption in the thick ascending limb of loop of Henle B. It is contraindicated in patients with increased intracranial tension C. It is contraindicated in acute left ventricular failure D. It is not used to treat cardiac or hepatic or renal edema

Description : The following is true of mannitol except: A. It inhibits solute reabsorption in the thick ascending limb of loop of Henle B. It is contraindicated in patients with increased intracranial tension C. It ... acute left ventricular failure D. It is not used to treat cardiac or hepatic or renal edema

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At equinatriuretic doses which diuretic causes the maximum K+ loss: A. Furosemide B. Hydrochlorothiazide C. Acetazolamide D. Amiloride

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Chloramphenicol inhibits bacterial protein synthesis by: A. Binding to 30S ribosome and inhibiting attachment of aminoacyl tRNA B. Binding to 50S ribosome and preventing peptide bond formation C. Binding to 50S ribosome and blocking translocation of peptide chain D. Binding to both 30S and 50S ribosome and inducing misreading of mRNA code

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The Na+ retaining action of aldosterone is exerted on the: A. Proximal convoluted tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Distal convoluted tubul

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