Question

Most membrane functions are carried out by

• A. proteins
• B. phospholipids
• C. nucleic acids
• D. hormones

Answer 1

Answer: (A)

The cell membranes of multicellular organisms usually have a number of proteins embedded in their phospholipid bilayer that perform various functions like transport of molecules, reception and recognition of molecules, etc. These proteins are responsible for the majority of the functions that a cell performs.

So, the correct answer is 'proteins'.