Homeostasis and Feedback Loops

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Tags

NGSS.HS-LS1-3

Front

What role does the sensor play in homeostasis?

Back

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

Tags

NGSS.HS-LS1-3

Front

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

Back

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

Tags

NGSS.HS-LS1-3

Front

What is an effector in the context of homeostasis?

Back

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

Tags

NGSS.HS-LS1-3

Front

What is a feedback loop?

Back

A feedback loop is a biological mechanism that regulates homeostasis by using information from sensors to adjust the actions of effectors.

Tags

NGSS.HS-LS1-3

Front

What is negative feedback?

Back

Negative feedback is a process that counteracts a change in a system, helping to return it to its set point.

Tags

NGSS.HS-LS1-3

Front

What is positive feedback?

Back

Positive feedback is a process that amplifies a change or deviation from a set point, leading to an even greater response.

Front

How does high blood sugar affect insulin levels?

Back

High blood sugar promotes the release of insulin from the pancreas, which helps lower blood sugar levels.

Tags

NGSS.HS-LS1-3

Front

What happens during a negative feedback loop when blood sugar levels drop?

Back

When blood sugar levels drop, the pancreas releases glucagon, which raises blood sugar levels back to normal.

Tags

NGSS.HS-LS1-3

Front

Can you give an example of a positive feedback loop in the body?

Back

An example of a positive feedback loop is the process of childbirth, where the release of oxytocin increases contractions, leading to more oxytocin release.

Tags

NGSS.HS-LS1-3