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Question
The material in plant cell wall impervious to gases and water is
The material in plant cell wall impervious to gases and water is
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Solution
The correct option is C Suberin
In a plant cell wall, the main component of the middle lamella is pectin or pectic substances. Pectin is hydrophilic colloidal substance. The primary cell wall is composed of cellulose, hemicellulose and pectic compounds. In fungi, the cell wall is composed of chitin, glucans and mannan-protein complex. Lipids like suberin, cutin and waxes are also found as structural components of the cell wall. A suberin lamella is found in the suberized cells of cork tissue. It is separated from the contents of the cell by a cellulose wall. Being lipid in nature, suberin is impervious to water and gases. It is made up of phellonic acid and glycerol.
In a plant cell wall, the main component of the middle lamella is pectin or pectic substances. Pectin is hydrophilic colloidal substance. The primary cell wall is composed of cellulose, hemicellulose and pectic compounds. In fungi, the cell wall is composed of chitin, glucans and mannan-protein complex. Lipids like suberin, cutin and waxes are also found as structural components of the cell wall. A suberin lamella is found in the suberized cells of cork tissue. It is separated from the contents of the cell by a cellulose wall. Being lipid in nature, suberin is impervious to water and gases. It is made up of phellonic acid and glycerol.
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