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- 1. Multiple Choice
Diffusion & Facilitated Diffusion are both __________ transport.
Passive
Active
Easy
Free
- 2. Multiple Choice
Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]
high to low
low to high
low to low
high to high
- 3. Multiple Choice
Passive Transport uses ____ energy
no
a lot of
a little bit of
some
- 4. Multiple Choice
_____________ is the free movement of particles across the membrane with the concentration gradient
diffusion
facilitated diffusion
active transport
fusion
- 5. Multiple Choice
Passive Transport is the movement of particles _________ the concentration gradient.
with
against
opposing
throughout
- 6. Multiple Choice
An example of diffusion is
CO2 and O2 exchange in the lungs
Glucose transport
Na+ / K+ Pumps
Exocytosis
- 7. Multiple Choice
What is the movement of particles with the concentration gradient using protein "helpers"?
diffusion
facilitated diffusion
active transport
enzymatic reactions
- 8. Multiple Choice
An example of facilitated diffusion is
CO2 and O2 exchange in the lungs
Glucose transport
Na+ / K+ Pumps
Endocytosis
- 9. Multiple Choice
Facilitated diffusion needs what to get particles from one side of the membrane to the other?
a membrane-spanning protein
a surface protein
a phospholipid
a carbohydrate
- 10. Multiple Choice
What is a difference between diffusion and facilitated diffusion?
movement of particles from [high] to [low]
a protein "helper"
movement of particles from [low] to [high]
energy
- 11. Multiple Choice
The general name for movement of substances across cell membranes without need of energy input
passive transport
active transport
- 12. Multiple Choice
The condition in which all acting influences are balanced.
equilibrium
dynamic equilibrium
net movement
- 13. Multiple Choice
Small changes of particles moving across the membrane that sum together to produce no net change.
equilibrium
dynamic equilibrium
net movement
- 14. Multiple Choice
The number of molecules moving one direction minus the number of molecules moving in the other direction.
equilibrium
dynamic equilibrium
net movement
- 15. Multiple Choice
occurs when the concentration of particles is higher in one area than another.
concentration gradient
concentration
[high] --> [low]
- 16. Multiple Choice
The relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution. The higher the concentration, the more solute is present.
concentration gradient
concentration
[high] --> [low]
- 17. Multiple Choice
Way to display that molecules are moving from an area of high concentration to an area of low concentration.
concentration gradient
concentration
[high] --> [low]
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