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26 Cards in this Set
- Front
- Back
Hydrophobic |
Scared of water |
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Hydrophilic |
Loves water |
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Lipid Bilayer |
Two layers of phospholipids |
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Selectively Permeable |
allow some molecules in and keeps other molecules out |
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Osmosis |
-diffusion of water through a selectively permeable membrane -the diffusion of water through a cell membrane |
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Diffusion |
the random movement of particles through the lipid bilayer from an area of high concentration to an area of low concentration |
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Equilibrium |
Solutes move from high concentration to low concentration until both sides are equal concentration |
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Concentration Gradient |
measurement of how concentration of solutes differs on either side of a membrane |
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Passive transport |
-Cell uses no energy (does not have to spend ATP) -Transport protein that provides a tube-like opening in the plasma membrane through which particles can diffuse -The movement of substances through a cell membrane without the use of cellular energy |
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Equilibrium |
Solutes move from high concentration to low concentration until both sides are equal concentration |
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Active Transport |
-actively moves molecules to where they are needed -Particle movement from an area of lower concentration to an area of higher concentration. -when energy is required to move materials through a cell membrane |
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Carrier Protein |
-help the process -transport protein that changes shape when a particle binds with it |
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Endocytosis |
-Taking bulky material into a cell -process by which a cell takes in material by forming a vacuole around it |
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Exocytocis |
-forces material out of cell in bulk -process by which a cell expels wastes from a vacuole |
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Phagocytosis |
"cell eating" |
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Pinocytocis |
"cell drinking" |
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Hypotonic Solution |
The solution has a lower concentration of solutes and has a higher concentration |
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Hypertonic Solution |
The solution has a higher concentration of solutes and a lower concentration of water than inside the cell |
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Isotonic Solution |
The concentration of solutes in the solution is equal to the concentration of solutes inside the celll. |
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Causes a cell to swell |
Hypotonic Solution |
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Doesn't change the shape of a cell |
Isotonic Solution |
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Causes osmosis |
Hypotonic Solution |
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Causes a cell to swell |
Hypertonic Solution |
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Energy |
Is used during active transport but not passive transport |
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Channel Protein |
Particle movement from an area of higher concentration to an area of lower concentration |
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Faciliated Diffusion |
A form of passive transport that uses transport proteins |