Homeostasis Flashcards
1
Q
Define Homeostasis
A
Homeostasis is the regulation
of the internal conditions of a cell or organism to maintain optimum
conditions for function in response to internal and external changes.
2
Q
What does homeostasis maintain optimal conditions for?
A
Enzyme action and all cell function
3
Q
Name 3 conditions maintained in the human body
A
- Blood glucose concentration
- Water levels
- Body temperature
4
Q
Which 2 automatic control systems are involved in homeostasis?
A
Nervous and Endocrine system
5
Q
What are the 3 main components of an automatic control system?
A
- Receptors
- Coordination centres
- Effectors
6
Q
State three reasons for organisms requiring homeostasis
A
So cells don’t burst (too much water)
so enzymes work properly (temperature
so chemical reactions occur (water and glucose)
