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Asked Dec 21, 2019
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Why do the cell membranes of microbes living in Arctic water likely contain more unsaturated fatty acids than do membranes of microbes living in hot springs?

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Expert Answer

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  • The plasma membrane is an important interface between the extracellular and intracellular environments. It allows the exchanges of molecules, gases, mediates cellular processes like endocytosis and signaling.
  • The fluidity of the plasma membrane is essential for these processes to take place. The membrane is composed of a phospholipid bilayer with the polar head groups exposed on the extracellular and intracellular space. The fatty acid chain is buried in the middle of the bilayer.
  • The unsaturated fatty acids are responsible for the fl...

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Biology

Cell Biology

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