Membrane Transport & membrane protein functions

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  • Created by: Chxxrx
  • Created on: 06-03-18 19:45
Diffusion
passive movement of molecules such as oxygen, CO2, glucose down a concentration gradient
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facilitated diffusion
special case of diffusion across a membrane through specific protein channels
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osmosis
passive diffusion of water molecules from a region of higher concentration of water molecules to a region of lower concentration of water molecules
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active transport
movement of substances against a concentration gradient; process requires energy in form of ATP
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Endosymbiosis theory
suggests that some organelles, notably chloroplasts and mitochondria found within eukaryotic cells, were once simple free-living prokaryotes
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mitosis
division which produces two identical daughter cells
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Lysosome
intracellular digestive systems from Golgi apparatus; breakdown p, na, carbs, lipids, breaking down materials entering cell (Phagocytosis)
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Centrosome
a pair of centrioles; assembly of microtubules, also provide structure and allow movement, important in cell division
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Extracellular matrix
collagen fibres + combo sugars and protein (glycoprotein); fibre like structures, anchor matrix to plasma membrane; strengthens, allows attachments between adjacent cells; cell-to-cell interactions; altering gene expression; coordination cell actions
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Card 2

Front

special case of diffusion across a membrane through specific protein channels

Back

facilitated diffusion

Card 3

Front

passive diffusion of water molecules from a region of higher concentration of water molecules to a region of lower concentration of water molecules

Back

Preview of the back of card 3

Card 4

Front

movement of substances against a concentration gradient; process requires energy in form of ATP

Back

Preview of the back of card 4

Card 5

Front

suggests that some organelles, notably chloroplasts and mitochondria found within eukaryotic cells, were once simple free-living prokaryotes

Back

Preview of the back of card 5
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