Homeostasis Flashcards
1
Q
Definition of homeostasis?
A
2
Q
Explain the advantage of having separate negative feedback mechanisms to control deviations away from normal?
A
It gives a greater degree of homeostatic control
3
Q
What happens when body temperature is too low? (3)
A
- Less kinetic energy
- Less successful collisions
- less ESC
4
Q
What happens when body temperature is too high?
A
-Enzymes denatured
5
Q
What are endotherms?
How do they maintain body temperature?
A
- Mammals, birds
- By both physiological + behavioural means
6
Q
What are ectotherms?
How do they maintain body temperature?
A
All other animals (not mammals, birds)
- By behavioural means
7
Q
What is the range of blood glucose concentration in cells?
A
8
Q
Where is glucagon secreted?
A
Alpha Cells
9
Q
Where is insulin secreted?
A
Beta Cells
10
Q
A
11
Q
A
12
Q
A
13
Q
SECOND MESSENGER MODEL
A
14
Q
QUESTIONS FROM QUESTION PACK
A
