16.1 principals of homeostasis

Question 1

what is homeostasis

Answer 1

the maintenance of an internal environment within restricted limits in organisms

Question 2

importance of homeostasis

Answer 2

-ensures enzymes dont denature and stay at their optimal
-changes to water potential may cause cells to shrink and expand

Question 3

negative feedback

Answer 3

when the change produced by the control system leads to a change in the stimulus detected by the receptor and turns the system off

Question 4

positive feedback

Answer 4

occurs when a deviation from an optimum causes changes that result in an even greater deviation from the normal