Question

The thickening material present in cell walls of collenchyma is

• A. Pectin, cellulose, hemicellulose
• B. Lignin, cellulose, hemicellulose
• C. Hemicellulose, suberin, cellulose
• D. Suberin, pectin, cellulose

Answer 1

The correct option is A Pectin, cellulose, hemicellulose

In higher plants, the cell wall is made up of mainly cellulose and hemicellulose. Pectins are usually found in parenchyma, but additional materials are deposited on the cell wall according to the function, e.g., pectin in collenchyma, lignin in sclerenchyma, and suberin in cork cells.