Feedback Loops

Front

What is homeostasis?

Back

Homeostasis is the maintenance of a relatively stable internal environment and often incorporates a form of feedback regulation.

Front

What detects change and sends a message to the control center?

Back

A receptor detects change and sends a message to the control center.

Front

What type of feedback loop is characterized by a response that enhances or increases the change?

Back

Positive feedback loop.

Front

In a negative feedback loop, what happens to a variable when it increases past its normal state?

Back

It decreases until it resumes its normal state.

Front

What happens when blood sugar gets too high according to the feedback loop?

Back

Insulin is released.

Front

What is a feedback loop?

Back

A feedback loop is a biological mechanism in which a system regulates itself by using the output of a process to control the input.

Front

What is the role of the control center in a feedback loop?

Back

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

Front

What is an effector in a feedback loop?

Back

An effector is a component that carries out the response determined by the control center.

Front

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

Back

An example of a negative feedback loop is the regulation of body temperature; when body temperature rises, mechanisms are activated to cool the body down.

Front

What is the difference between positive and negative feedback loops?

Back

Positive feedback loops amplify changes, while negative feedback loops counteract changes to maintain stability.