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Multiple Choice
Antidiuretic hormone (ADH) makes the _____ permeable to water.
A
collecting duct
B
proximal convoluted tubule
C
glomerulus
D
Bowman's capsule
Verified step by step guidance
1
Understand the role of antidiuretic hormone (ADH): ADH is a hormone that regulates water balance in the body by increasing water reabsorption in the kidneys.
Identify the structures in the nephron: The nephron consists of several parts, including the glomerulus, Bowman's capsule, proximal convoluted tubule, loop of Henle, distal convoluted tubule, and collecting duct.
Determine the function of each structure: The glomerulus and Bowman's capsule are involved in filtration, the proximal convoluted tubule reabsorbs nutrients and ions, and the collecting duct is responsible for water reabsorption under the influence of ADH.
Recognize the target of ADH: ADH specifically acts on the collecting duct, making it more permeable to water by inserting aquaporins (water channels) into the membrane of the duct cells.
Conclude that the correct answer is the collecting duct, as it is the structure that becomes permeable to water in response to ADH.