Lab exam 1 Flashcards
1
Q
passive transport
A
down the concentration gradient
2
Q
active transport
A
up the concentration gradient
3
Q
simple diffusion
A
no proteins
4
Q
facilitated diffusion
A
proteins
5
Q
flux
A
number of molecules that cross a membrane in a given time; refers to net movement
6
Q
if your body gets hot
A
vasodilation
7
Q
if your body gets cold
A
vasoconstriction
8
Q
diffusional equilibrium
A
no net transfer because there is an equal likliehood for the molecule to go from one side to the other
9
Q
factors affecting flux
A
- magnitude of driving force
- membrane surface are available for movement of molecules
- permeability
10
Q
osmotic pressure
A
- total solute concentration of a solution
- driving force for water movement
- move concentration of solute leads to higher osmotic pressure
11
Q
stimulus
A
increased body temperature
12
Q
sensor
A
thermoreceptors
13
Q
integrator
A
hypothalamus
14
Q
effector
A
sweat glands are effectors, sweating is the effect
15
Q
synergistic effectors
A
have same regulatory effects
