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QuestionAnswer
A phospholipid has both a hydrophilic region and a hydrophobic region mean it is
These type of proteins penetrate the hydrophobic core of the lipid bilayer
channel proteins such as these help with the passage of water molecules through the membrane in certain cells
carbohydrate covalently bonded to lipids form what?
This model displays the membrane as a fluid structure with various proteins embedded or attached to a doublle layer of phospholipids
_______ is the spontaneous movement of a substance down its concentration gradient
in ________ diffusion, a transport protein moves a substance down its concentration gradient quicker
_______ usually require a specific transport protein to help them cross a cell membrane
QuestionAnswer
Plants, Prokaryotes, fungi, and some protists have ______ ______ ______ so that they wont burst when filled with water
______ molucules dissolve into fats and pass through the lipid bilayer rapidly
the ability of a solution to cause a cell to gain or lose water
the voltage across a membrane which can range from about -50 to -200 millivolts
the main electrogenic pump in plants, fungi, and bacteria
when a cell secretes macromolecules by the fusion of vesicles with the plasma membrane
exocytosis and endocytosis are mainly to move ______ ______ across the phospholipid bilayer

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