AP BIOLOGY

Detailed explanation-1: -Cell wall in cork is impervious to water and gases due to the presence of suberin. Suberin is a waterproof waxy material found in higher plants. Suberin is the main constituent of corks.

Detailed explanation-2: -Suberin is a impermeable waxy substance present in the cell walls of corky tissues. The cork cells are compactly arranged without any intercellular spaces and the chemical called suberin in the cell walls of cork cells makes them impervious to gases and water.

Detailed explanation-3: -Suberin is a chemical in walls of cork cells, which is impervious to gases and water.

Detailed explanation-4: -A chemical substance called suberin is present in the cell walls of cork that makes them impervious to gases and water.

Detailed explanation-5: -Suberin is a waterproofing waxy substance found in higher plants. Suberin is a main constituent of cork, and is named after the cork oak, Quercus suber. Its main function is as a barrier to movement of water and solutes. Suberin is highly hydrophobic and a somewhat ‘rubbery’ material.