Describe the arrangement of  phospholipid layer of cell memb

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41. Describe the arrangement of  phospholipid layer of cell membrane ?


Lipids are arranged in bilayer. The  polar head of the lipid head towards the outer sides forming a hydrophillic layer. The non-polar heads face towards the inner side forming the hydrophobic layer. The arrangement ensures that the nonpolar tail is protected from the aqueous enviroment. Lipid components mainly consist of phosphoglycerides.

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46. By which process the solid particles are engulfed by the plasma membrane.
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47. What are permeases ?
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48. Which is the most acceptable model of cell membrane ?
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