Question

What is the percentage of protein in the cell membrane of human erythrocytes?

• A. 52%
• B. 40%
• C. 37%
• D. 33%

Answer 1

Answer:

A. 52%

• The cell membrane is a phospholipid bilayer. It also contains various proteins.

• The protein and lipid percentages vary in different cells.

• Human erythrocyte membranes are 52% protein.