AP BIOLOGY

Detailed explanation-1: -The collenchyma tissues are elongated in shape. Intercellular spaces between the cells of the collenchyma tissues are generally absent. The cell walls of collenchyma are thick at the corner and are uneven. The cell wall is composed of pectin and cellulose.

Detailed explanation-2: -Collenchyma Characteristics The cells are mostly elongated, spherical, oval or polygonal in shape. Cells are alive at maturity. They contain a primary cell wall. The primary cell wall is unevenly thickened and mostly thickened at the corners.

Detailed explanation-3: -Due to the hemicellulose, cellulose, and pectin deposits, the cells of collenchyma tissue are significantly thickened at the corners.

Detailed explanation-4: -Elongated cells which are thickened at the corners are Collenchyma.

Detailed explanation-5: -Collenchyma are thin-walled but possess thickening of cellulose, water and pectin substances at the corners where number of cells join together. Hence, the cells are living elongated and irregularly thickened at the corners.