Negative feedback loop

Definition

A negative feedback loop is a biological process where the output of a system suppresses or diminishes its own activity to maintain homeostasis. It helps stabilize internal conditions by counteracting deviations from a set point.

5 Must Know Facts For Your Next Test

1. Negative feedback loops are crucial for maintaining homeostasis in organisms.
2. Examples include the regulation of body temperature, blood glucose levels, and hormone levels.
3. Components involved include sensors, control centers, and effectors.
4. Negative feedback loops work to reverse changes detected in the internal environment.
5. Failure in these loops can lead to disorders such as diabetes or hyperthermia.

Review Questions

Related terms

Homeostasis:

The maintenance of stable internal conditions within an organism.

Positive Feedback Loop: A process that amplifies changes rather than diminishing them.

Effector: A component in a feedback loop that acts to bring about change as directed by the control center.