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55 Cards in this Set
- Front
- Back
-Moves from Low concentration to high concentration. -Energy required (atp) required |
Active transport |
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-Moves from high concentration to low concentration -no energy required |
Passive transport |
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Equal movement back and forth across the membrane |
Equilibrium |
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Movement of dissolved partials in a substance from areas of high concentration to areas of low concentration (spreading out) |
Concentration gradient |
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Three types of passive transport |
Diffusion Osmosis Facilitated diffusion |
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Common molecules that move across the membrane by diffusion are _________ _________and _________. |
Carbon dioxide Oxygen |
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Larger molecules like _____ _____ and ______ need help across. They diffuse using a ______ _____ to facilitate their movement. |
Amino acids Glucose Channel protein |
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A special type of diffusion that involves the movement of water only. |
Osmosis |
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A special type of diffusion that uses protein. (Lock and key) |
Facilitated diffusion |
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To calculate the percent of change. |
#of water molecules on the outside ____________________________ # of molecules outside total
Answer* 100 to get % of change |
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Combination of the solute and the solvent |
Solution |
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The substance being dissolved |
Solute |
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The substance doing the dissolving |
Solvent |
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A physical process by which the solute is pulled into smaller pieces by the solvent. |
Dissolving |
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The tendency of water to move across a membrane based on the number of solutes on each side. |
Osmotic pressure |
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What type of solution is this? -the cell will shrink -higher concentration of soul it's outside the cell |
Hypertonic solution |
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What type of solution is this? -the cell will swell and possible burst -lower concentration of solutes outside the cell |
Hypotonic |
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What type of solution is this? -equal amounts of solute inside and outside the cell -equilibrium |
Isotonic solution |
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What does the prefix Endo mean? |
Inside |
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What does the prefix Exo mean? |
Outside |
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What does the prefix Pino mean? |
Drinking |
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What does the prefix Phago mean? |
Eating |
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What does the suffix Cytosis mean? |
Cell |
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What type of diffusion is this? |
Osmosis |
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What type of diffusion is this? |
Facilitated diffusion |
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What type of diffusion is this? |
Ion channels |
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Special transport proteins that can open and close. |
Ion channels |
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The process in which cells surround and engulf substances that are too big to enter the cell. The cell uses its own membrane to engulf the substance into a vehicle and bring it in. |
Endocytosis |
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The process in which the cell forms a vehicle around the unwanted particles and expels them out the cell. |
Exocytosis |
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A specialised protein that pumps 3 sodium ions out of the cell for every 2 potassium ions. Against the gradient (low to high) |
Sodium potassium pump |
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Osmosis (passive/active) energy required? _____ |
Passive No |
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Endocytosis (passive/active) energy required? _____ |
Active Yes |
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Ion channels (passive/active) energy required? _____ |
Passive No |
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Facilitated diffusion (passive/active) energy required? _____ |
Passive No |
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Exocytosis (passive/active) energy required? _____ |
Active Yes |
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Sodium potassium pump (passive/active) energy required? _____ |
Active Yes |
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What are three function of the cell membrane? |
1) regulates what enters and leaves 2) provides protection and support 3) communicate with other cells |
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What is the cell membrane made up of? |
Lipid bilayer |
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Lipid with a phosphate group attached. A polar group attached to the phosphate. |
Phospholipid |
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Attracted to water |
Polar Hydrophilic |
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Repelled by water |
Nonpolar Hydrophobic |
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What surrounds each side of the cell membrane? |
Water based fluids |
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What are the three main proteins in the plasma membrane important for cell function? |
1) transport proteins 2) marker proteins 3) receptor proteins |
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What type of lipid in the cell membrane makes it more rigid? |
Cholesterol |
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Proteins that go all the way through the bilayer |
Integral |
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Proteins on only one side of the bilayer |
Peripheral |
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What part of the membrane attracts water? |
Phosphate head |
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What part of the membrane helps maintain flexibility? |
Cholesterol |
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What part of the membrane is involved in cell recognition? |
Peripheral protein Carbohydrate chains |
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Repels water in the cell membrane |
Fatty acid tails |
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Helps transport large molecules across the membrane. |
Integral protein |
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What type of diffusion is this? |
Sodium potassium pump |
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Difference in endocytosis and exocytosis. |
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What type of diffusion is this? |
Exocytosis |
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What type if diffusion is this ? |
Endocytosis |