6A Homeostasis Flashcards
1
Q
Homeostasis is…
A
a complex process that maintains the internal environment of an organism within set limits despite changes in the external environment.
2
Q
Example of positive feedback loop
A
Childbirth
3
Q
Positive feedback…
A
Increases the initial stimulus
4
Q
Example of negative feedback loop…
A
Blood glucose, temperature, and water regulation
5
Q
Negative feedback…
A
Counteracts the initial stimulus
6
Q
Stimulus
A
a change in the external or internal environment of an organism.
7
Q
Receptor
A
receives the message
8
Q
Response
A
change in function of a target cell, organ, or organism after stimulation
9
Q
3 steps of cell signalling
A
Reception, Transduction and Response
10
Q
Effector
A
What will illicit a response
