Homeostasis and Feedback Loops

Front

What is Homeostasis?

Back

The process by which organisms maintain a relatively stable internal environment.

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What is a Feedback Loop?

Back

A biological mechanism that helps maintain homeostasis by regulating physiological processes.

Front

What is the role of a Sensor in Homeostasis?

Back

The sensor detects changes in the internal environment and sends information to the control center.

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What is the role of a Control Center in Homeostasis?

Back

The control center processes information from the sensor and determines the appropriate response.

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What is the role of an Effector in Homeostasis?

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The effector carries out the response determined by the control center to restore balance.

Front

What is a Negative Feedback Loop?

Back

A process that counteracts a change in a physiological variable, helping to maintain homeostasis.

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What is an example of a Negative Feedback Loop?

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Regulation of body temperature: when body temperature rises, mechanisms are activated to cool the body down.

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What is a Positive Feedback Loop?

Back

A process that amplifies a change in a physiological variable, often leading to a greater response.

Front

What is an example of a Positive Feedback Loop?

Back

During childbirth, the release of oxytocin increases contractions, which leads to more oxytocin release.

Front

How do organisms respond to external environmental changes?

Back

Through adaptations and adjustments in their internal processes to maintain homeostasis.