Which of the following best describes the role of negative feedback in maintaining blood glucose homeostasis?
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ALow blood glucose triggers insulin release, which promotes glucose uptake
BElevated blood glucose triggers glucagon release, which promotes glucose uptake
CLow blood glucose triggers insulin and glucagon release simultaneously
DElevated blood glucose triggers insulin release, which promotes glucose uptake and reduces blood glucose levels
✓ Correct answer: D. Elevated blood glucose triggers insulin release, which promotes glucose uptake and reduces blood glucose levelsNegative feedback is a key homeostatic mechanism where elevated blood glucose stimulates insulin release from pancreatic beta cells, leading to increased glucose uptake by cells and restoration of normal blood glucose levels.
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Theory