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- 1. Multiple Choice
A phospholipid has two parts. What are they called?
Hydrophilic Head, Hydrophobic Tail
Hydrophobic Head, Hydrophilic Tail
- 2. Multiple ChoiceDescribes the arrangement of the cell membrane as bendable and made of many parts.The Fluid Mosaic ModelThe Major Mobility ModelThe Crazy Cell ModelThe Maze Model
- 3. Multiple Choice
Which term describes the relatively constant internal physical conditions of an organism?
cell specialization
homeostasis
permeability
unicellularity
- 4. Multiple Choice
Which of the following is the function of the cell membrane? Select all that apply.
Provides instructions to the cell and other organelles.
Regulates compounds in and out fo the cell.
Allows cells to communicate and interact with other cells.
Breaks down wastes and other compounds.
Protects the cell from its environment.
- 5. Multiple ChoiceThe type of cellular transport that requires no energy.Active TransportProtein PumpsPassive TransportEndocytosis
- 6. Multiple ChoiceWhat type of transport uses transport (channel) proteins to help molecules move from higher to lower concentrations?Protein PumpsDiffusionFacilitated DiffusionOsmosis
- 7. Multiple Choice
In pure water, a red blood cell from an animal will swell and burst, but a leaf cell from a plant will not. Which structure in the leaf cell will prevent the plant cell from bursting?
cell membrane
cell wall
mitochondrion
nucleus
- 8. Multiple Choice
During diffusion, molecules tend to move
up the concentration gradient
from an area of lower concentration to an area of higher concentration
in a direction that doesn’t depend on concentration
down the concentration gradient
- 9. Multiple Choice
When particles move up the gradient, from a low concentration to high concentration while requiring energy like it does to move a boulder up a hill, it is called _______.
Passive Transport
Active Transport
- 10. Multiple ChoiceA cell membrane has pores that allow certain materials to pass through. This is a type of cell membrane.PermeableIn high concentrationAt equilibriumIn low concentration
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