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- 1. Multiple ChoiceTrue or False: Regulating what enters and leaves the cell helps the cell maintain homeostasis.TrueFalse
- 2. Multiple ChoiceMost of the cell membrane is made of...LipidsCarbohydratesProteinsNucleic acids
- 3. Multiple Choice
Hydrophobic region of the cell membrane?EBCA - 4. Multiple ChoicePhospholipid heads are...HydrophobicHydrophilic
- 5. Multiple ChoiceWhat is the name for a molecule that has a polar head region and a hydrophobic tail region?BihydrophicityAmphipathicHydrophilicDipolarity
- 6. Multiple Choice___________ allow cells to recognize each other and act like ID tags.CarbohydratesProteinsPhospholipidsCholesterol
- 7. Multiple ChoiceHow many layers is the lipid bilayer?1234
- 8. Multiple ChoiceTrue or False: Large molecules, such as glucose, can easily pass through the cell membrane without any help...True: They pass right through.False: They need a protein channel.
- 9. Multiple ChoiceWhat forms the channels and pumps in the phospholipid bilayer?CarbohydratesProteinsHydrophilic headsLipids
- 10. Multiple ChoicePart of the plasma membrane responsible for cell recognition...CEBD
- 11. Multiple Choice
Diffusion & Facilitated Diffusion are both __________ transport.
Passive
Active
Easy
Free
- 12. Multiple Choice
Passive Transport uses ____ energy
no
a lot of
a little bit of
some
- 13. Multiple Choice
An example of diffusion is
CO2 and O2 exchange in the lungs
Glucose transport
Na+ / K+ Pumps
Exocytosis
- 14. Multiple Choice
What is the movement of particles with the concentration gradient using protein "helpers"?
diffusion
facilitated diffusion
active transport
enzymatic reactions
- 15. Multiple Choice
An example of facilitated diffusion is
CO2 and O2 exchange in the lungs
Glucose transport
Na+ / K+ Pumps
Endocytosis
- 16. Multiple Choice
Small changes of particles moving across the membrane that sum together to produce no net change.
equilibrium
dynamic equilibrium
net movement
- 17. Multiple Choice
The number of molecules moving one direction minus the number of molecules moving in the other direction.
equilibrium
dynamic equilibrium
net movement
- 18. Multiple Choice
occurs when the concentration of particles is higher in one area than another.
concentration gradient
concentration
[high] --> [low]
- 19. 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]
- 20. Multiple Choice
Passive Transport is the movement of particles across the membrane from an area of [ ___ ] concentration to an area of [ ___ ] concentration.
high - low
low - high
low - low
high - high
- Answer choicesTagsAnswer choicesTags