The students are learning about maintaining electrolytes in the body by actions within the kidney. Where do the students learn the fine-tuning of potassium levels occurs?
A) Proximal convoluted tubule
B) Distal convoluted tubule
C) Loop of Henle
D) Glomerulus
B
Feedback:
The fine-tuning of potassium levels occurs in the distal convoluted tubule, where aldosterone activates the sodium–potassium exchange, leading to a loss of potassium. Therefore, options A, C, and D are not correct.
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