Question

Which statement correctly describes amphipathic (or amphiphilic) helices and sheets?Helices are typically hydrophilic on one surface, whereas sheets usually have both hydrophilic and hydrophobic residues evenly distributed throughout their structure.Sheets are typically hydrophilic on one surface, whereas helices usually have both hydrophilic and hydrophobic residues evenly distributed throughout their structure.Amphipathic helices and sheets have hydrophilic and hydrophobic residues evenly distributed throughout their structure.Amphipathic helices and sheets have predominantly hydrophilic (or hydrophobic) residues on one face.

Answer 1

Answer:

The correct answer is the last statement.

Explanation:

Amphipathic refers to a substance that comprises both hydrophobic and hydrophilic surfaces. Thus, the given first three statements are incorrect. The amphipathic helices are witnessed on the proteins surfaces in which the hydrophilic region associates with the aqueous phase and the hydrophobic regions associate with the hydrophobic component of the protein.  

Both the amphipathic sheets and helices exhibit primarily the hydrophobic or hydrophilic residues on one face. Thus, the correct answer is the last statement.