Question

Which of the following statements is correct regarding water repelling end of phospholipid in plasma membrane?

• A. It is the hydrophilic end of phospholipid molecules
• B. It has affinity for water
• C. It is the hydrophobic end of phospholipid molecules
• D. It allows water soluble substances to pass through it

Answer 1

The correct option is C It is the hydrophobic end of phospholipid molecules

The phospholipid layer of plasma membrane has two ends-inner (hydrophobic) and outer (hydrophilic). The inner layer repels water and does not allow water soluble substances to pass through it while the outer layer has affinity for water and allows water soluble substances to pass through it.