Homeostasis and Feedback Mechanisms in Biology

Positive feedback is when a variable has the ability to increase itself. It can be helpful in moderation to help people function normally.

Negative feedback loops occur when a change in one direction produces a change in the other. An example is the regulation of temperature and blood glucose levels.

A rise in substance concentrations triggers feedback that causes the substance's content to reduce.

<p>Negative feedback loops are considered naturally stable because they help maintain the value of a variable around its set point.</p> Signup and view all the answers

<p>Negative feedback loops typically result in the value of a variable oscillating about the set point when faced with different stimuli.</p> Signup and view all the answers

<p>Onset of contractions in childbirth</p> Signup and view all the answers

<p>If blood glucose levels rise, it may result in diabetes.</p> Signup and view all the answers

<p>Detect and transmit a physiological value to the control center.</p> Signup and view all the answers

<p>Positive feedback loops cause reactions that amplify the change, while negative feedback loops counteract the change.</p> Signup and view all the answers

<p>A change in input generates reactions that cause further modifications in the same direction.</p> Signup and view all the answers

<p>Negative feedback mechanisms counteract changes to maintain stability and balance.</p> Signup and view all the answers