Question

membrane proteins are not very soluble in water because they possess long stretches of non - polar amino acids that are
multiple choice
used as transport channels.
hydrophobic.
are transmembrane.
hydrophilic.
too long to interact with the water molecules.

Explanation:

Water is a polar molecule. Non - polar amino acids do not interact well with polar water molecules. Hydrophobic substances repel water, and non - polar amino acids are hydrophobic. This is why membrane proteins with long stretches of non - polar amino acids are not very soluble in water.

Answer:

B. hydrophobic