QuestionSBA
QuestionChoice
Modification of urine does occur via the movement of ions within the distal tubule, it occurs via the following mechanism: Na<sup>+</sup> and Cl<sup>-</sup> are actively reabsorbed from the tubular fluid in exchange for K<sup>+</sup> and H<sup>+</sup> which are secreted into the tubular fluid.
10000725
e
There is no movement of ions within the distal tubule
QuestionChoice
This is switched around, the correct exchange of ions is: Na<sup>+</sup> and Cl<sup>-</sup> are actively reabsorbed from the distal tubule, in exchange for K<sup>+</sup> and H<sup>+</sup> which are secreted into the tubule.
10000723
c
Na<sup>+</sup>and Cl<sup>-</sup> are secreted from the tubular fluid in exchange for K<sup>+</sup> and H<sup>+</sup>, which are actively reabsorbed into the tubular fluid
QuestionChoice
It is Cl<sup>-</sup> which is actively reabsorbed from the tubular fluid alongside Na<sup>+</sup> in exchange for K<sup>+</sup> and H<sup>+</sup>, not Ca<sup>2+</sup>.
10000724
d
Ca<sup>2+</sup> and Na<sup>+</sup> are actively reabsorbed from the tubular fluid in exchange for K<sup>+</sup> and H<sup>+</sup>, which are secreted into the tubular fluid
QuestionChoice
The distal tubule performs modification of urine prior to the final modification in the collecting duct. Na<sup>+</sup> and Cl<sup>-</sup> are exchanged for K<sup>+</sup> or H<sup>+</sup> throughout the distal tubule.
10000721
a
Na<sup>+</sup> and Cl<sup>-</sup> are actively reabsorbed from the tubular fluid in exchange for K<sup>+</sup> and H<sup>+</sup>, which are secreted into the tubular fluid
QuestionChoice
The distal tubule performs modification of urine prior to the final modification in the collecting duct. However, the correct exchange of ions is the following: Na<sup>+</sup> and Cl<sup>-</sup> are exchanged for K<sup>+</sup> or H<sup>+</sup> throughout the distal tubule.
10000722
b
K<sup>+</sup> and Cl<sup>-</sup> are actively reabsorbed from the tubular fluid in exchange for Na<sup>+</sup> and H<sup>+</sup>, which are secreted into the tubular fluid
Concept
Chapter
2693
3814
Nephron Structure
Topic
168
Renal Physiology
12691
Which of the following options best describes what happens in the distal tubule of the nephron during urine formation?
a