A newly synthesized polypeptide will ultimately be located within the phospholipid bilayer of the plasma membrane.When this polypeptide folds to form its tertiary structure, the _____________ amino acid R-groups will most likely be facing outward.

Question

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The phospholipid bilayer of the plasma membrane is composed of hydrophilic polar head groups facing the extracellular and intracellular fluid, and hydrophobic nonpolar fatty acid tails facing each other. Thus, a newly synthesized polypeptide that is ultimately located within the membrane will need to interact with the hydrophobic region of the bilayer, requiring hydrophobic amino acid R-groups to fold into the tertiary structure facing outward.

A Newly Synthesized Polypeptide Will Ultimately Be Located Within the Phospholipid