Unit 3: Homeostasis & Body Systems

Front

What are Positive Feedback Loops?

Back

Positive Feedback Loops are processes that amplify changes or pushes above normal set values, leading to an increased response.

Front

What is a Negative Feedback Loop?

Back

A Negative Feedback Loop is a process that counteracts changes, helping to maintain homeostasis by returning a system to its set point.

Front

List the levels of organization in the body from simplest to most complex.

Back

Cells, Tissues, Organs, Organ Systems, Organisms.

Front

What is Homeostasis?

Back

Homeostasis is the tendency of an organism to maintain a balanced internal state to stay healthy.

Front

Give an example of a Positive Feedback Response.

Back

When you get cut, skin cells release hormones that signal platelets to stop the bleeding, and platelets release more hormones to attract even more platelets.

Front

What role does insulin play in blood sugar regulation?

Back

Insulin helps lower blood sugar levels by allowing glucose to enter cells.

Front

What is the primary function of the pancreas in glucose regulation?

Back

The pancreas releases insulin in response to high blood glucose levels.

Front

How do stimuli relate to homeostasis?

Back

Stimuli are changes in the environment that can disrupt homeostasis, prompting a response to restore balance.

Front

What is the difference between a stimulus and a response?

Back

A stimulus is an external change that triggers a reaction, while a response is the action taken to address that change.

Front

What is the significance of feedback loops in biological systems?

Back

Feedback loops are crucial for maintaining homeostasis by regulating physiological processes.