QuestionSBA
QuestionChoice
This is the correct answer. Aldosterone increases Na+ reabsorption and K+ secretion in the collecting duct and late distal convoluted tubule by stimulating the sodium-potassium ATPase on the basal side of the tubular cells
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a
Increased Na+ reabsorption and K+ secretion in the collecting duct and late distal convoluted tubule
QuestionChoice
This is not the correct answer. Renin, secreted by juxtaglomerular cells, is responsible for converting angiotensinogen (produced in the liver) into angiotensin I.
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b
It converts angiotensinogen to angiotensin I
QuestionChoice
This is not the correct answer. This is one of the actions of angiotensin II, which also stimulates aldosterone secretion.
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e
Directly stimulates vasoconstriction
QuestionChoice
This is not the correct answer. The Angiotensin-Converting Enzyme (ACE), produced in the lungs, is responsible for converting angiotensin I to angiotensin II.
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c
It converts angiotensin I to angiotensin II
QuestionChoice
This is not the correct answer. This is one of the actions of angiotensin II, which also stimulates aldosterone secretion.
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d
It increases Na+ resorption via stimulation of sodium-hydrogen ion exchanger activity via AT1 receptors in the tubular cells
Concept
Chapter
2693
5969
Renin Angiotensin System
Topic
167
Endocrine physiology
17863
Aldosterone is a steroid hormone involved in the renin-angiotensin-aldosterone system (RAAS).

What is the effect of this hormone?
a