Question

the structures of four different amino acids are shown below. which amino acid is most likely to be found in a region of a protein that interacts with the hydrophobic interior of the cell membrane? arginine alanine serine lysine

Explanation:

Hydrophobic amino - acids are likely to be found in regions interacting with the hydrophobic interior of the cell membrane. Alanine has a non - polar methyl side chain, making it hydrophobic. In contrast, lysine and arginine have charged side chains and serine has a polar side chain, making them hydrophilic.

Answer:

B. Alanine