Question

Which of the following show selective permeability?

• A. Cell membrane
• B. Cell wall
• C. Cytoplasm
• D. Protoplasm

Answer 1

The correct option is A Cell membrane

• The cell membrane or plasmalemma is a phospholipid bilayer that are selectively permeable membranes which separate the interior of the cells (cell organelles and cytoplasm) from the outside environment or the extracellular space.
  
• A selectively permeable can be defined as a cell membrane which allows only certain molecules or ions to pass through the membrane by active or passive transport.
• So, the correct answer is 'Cell membrane'.