Question 1
Question detail
Explain how the release of ADH is controlled by negative feedback to maintain blood water concentration.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Hormonal coordination in humans
Question
Explain how the release of ADH is controlled by negative feedback to maintain blood water concentration.
Answer
ADH, or antidiuretic hormone, is released from the pituitary gland when blood water concentration is low. This hormone increases the permeability of kidney tubules, allowing more water to be reabsorbed back into the bloodstream. When blood water concentration returns to normal, the secretion of ADH decreases, demonstrating a negative feedback mechanism.
Explanation
This answer is strong because it clearly outlines the role of ADH in regulating blood water concentration and describes the negative feedback loop involved. The question tests the student's understanding of hormonal regulation and feedback systems.
Common mistake
Misunderstanding ADH Function
Students often confuse the role of ADH with other hormones, thinking it directly increases blood water concentration rather than controlling its release through negative feedback.
Clarify that ADH regulates water reabsorption in the kidneys and that its release is controlled by negative feedback mechanisms that respond to blood water concentration levels.
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