Homeostasis and Feedback Loops

Front

What is homeostasis?

Back

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

Front

What is a feedback loop?

Back

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

Front

What are the two main types of feedback loops?

Back

Positive feedback loops and negative feedback loops.

Front

What is a positive feedback loop?

Back

A feedback loop that amplifies a response or increases the output of a process.

Front

What is a negative feedback loop?

Back

A feedback loop that counteracts a change, helping to maintain stability in a system.

Front

Give an example of a positive feedback loop in the human body.

Back

Childbirth, where the release of oxytocin increases contractions, leading to more oxytocin release.

Front

Give an example of a negative feedback loop in the human body.

Back

Regulation of body temperature, where the body cools down when overheated.

Front

What is diffusion?

Back

The process by which molecules move from an area of high concentration to an area of low concentration.

Front

How does diffusion relate to homeostasis?

Back

Diffusion helps maintain balance of substances in and out of cells, contributing to homeostasis.

Front

What role do enzymes play in feedback loops?

Back

Enzymes can facilitate reactions that are part of feedback loops, influencing the rate of processes.