Question

Which combination describes the plasma membrane?

a.hydrophilic interior, hydrophobic exterior

b.hydrophilic interior and exterior

c.hydrophobic interior, hydrophilic exterior

d.hydrophobic interior and exterior?

Answer 1

Answer: C) Hydrophobic interior, hydrophilic exterior

Step-by-step explanation:

• The plasma membrane of the cell defines its boundary and separates its internal components from the external environment.
• The basic components of the plasma membrane include phospholipids, carbohydrates, proteins, and cholesterol.
• The plasma membrane is a phospholipid bilayer, with hydrophobic tails of the phospholipid projecting inwards and the hydrophilic exterior in contact with the external environment.
• Due to this, the plasma membrane has a hydrophobic interior and hydrophilic exterior.