HOMEOSTASIS. What is homeostasis? Self-regulating process by which biological systems tend to...
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Transcript of HOMEOSTASIS. What is homeostasis? Self-regulating process by which biological systems tend to...
HOMEOSTASIS
What is homeostasis?
Self-regulating process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival. WHAT?!?!?!?
In a group of 2-3 people put the above statement into your own words.
How does it work?
Use feedback mechanism to keep system at equilibrium. 2 types
Negative feedback- system changes and goes back to the set point.
Positive feedback- system changes and continues in that direction.
How does it work
In humans use glands to determine levels of blood and when there is a change the body reacts. Ex- hypothalamus Body temperature
When temperature is too low:
Blood vessels constrict pushing blood to center of body, muscles contract to give off heat.
When temperature is too high:
Blood vessels dilate pushing blood to skin, sweat is secreted to cool skin.
Other examples of homeostasis
Movement of ions across membranes
pH
Blood sugar
IN A GROUP OF 2-3 PEOPLE COME UP WITH AN EXAMPLE OF SOMETHING YOU LEARNED THIS YEAR AND HOW IT RELATES TO HOMEOSTASIS.
