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Which part of the nephron is primarily responsible for the reabsorption of water and solutes from the filtrate?
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25. The Urinary System
The Nephron
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In the urinary system, the functional unit of the kidney responsible for filtering blood and forming urine is the _____.
A
Nephron
B
Renal capsule
C
Ureter
D
Renal pelvis
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Understand that the question asks for the functional unit of the kidney responsible for filtering blood and forming urine.
Recall that the kidney's main role is to filter blood, remove waste, and produce urine, which involves specialized structures.
Identify the nephron as the microscopic structural and functional unit of the kidney where filtration, reabsorption, and secretion occur.
Recognize that other options like the renal capsule, ureter, and renal pelvis have different roles: the renal capsule is a protective layer, the ureter transports urine, and the renal pelvis collects urine before it moves to the ureter.
Conclude that the nephron is the correct answer because it directly performs the filtration and urine formation processes.
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