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Homeostasis summary and practice

Homeostasis and response • Homeostasis

Key concepts

What you'll likely be quizzed about

  • Homeostasis maintains a constant internal environment, crucial for optimal enzyme activity and cellular processes.
  • Core variables regulated include blood glucose, body temperature, and water/ion balance.
  • Any deviation from normal ranges can reduce cellular efficiency or cause damage.

Flashcards

Test your knowledge with interactive flashcards

Example flow: high blood glucose → effect

Click to reveal answer

High blood glucose leads the pancreas to increase insulin secretion, causing blood glucose to decrease.

Key notes

Important points to keep in mind

Homeostasis operates continuously to maintain optimal enzyme conditions.

Negative feedback identifies stimulus, detector, controller, and effector in various examples.

Nervous responses are rapid; hormonal responses are slower and longer-lasting.

Insulin lowers blood glucose by promoting glycogen storage; glucagon raises it by breaking down glycogen.

ADH modifies kidney reabsorption to control blood water content; dialysis replaces kidney function in failure.

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