Positive and negative feedback essay Flashcards
1
Q
Purpose of feedback loops
A
To maintain homeostasis
2
Q
Why do organisms use homeostasis
A
To maintain a “steady state” or internal balance regardless of external environment
3
Q
What type of feedback is maintaining homeostasis
A
Negative
4
Q
Stimulus and response in homeostasis
A
Stimulus: fluctuations above or below a set point
Response: returns the variable to the set point
5
Q
Negative feedback
A
Helps return a variable to a normal range
6
Q
Positive feedback
A
Amplifies a stimulus to drive something to completion
7
Q
What governs physiological changes that occur
A
Circadian rhythm
8
Q
What regulates the circadian rhythm
A
Pineal gland
9
Q
Acclimatization
A
Process through which homeostasis can adjust to changes in external environment
