AP BIOLOGY

Detailed explanation-1: -Like parenchyma cells, collenchyma is living at maturity. Collenchyma cells have thick primary walls composed of cellulose.

Detailed explanation-2: -Collenchyma, like parenchyma, lack secondary cell walls but have thicker primary cells walls than parenchyma. They are long and thin cells that retain the ability to stretch and elongate; this feature helps them provide structural support in growing regions of the shoot system.

Detailed explanation-3: -Collenchyma cells are elongated cells with irregularly thick cell walls that provide support and structure. Their thick cell walls are composed of the compounds cellulose and pectin.

Detailed explanation-4: -COLLENCHYMA: A PRIMARY OR SECONDARY CELL WALL? Collenchyma cell walls are generally described as being primary walls which they resemble in properties and composition.

Detailed explanation-5: -So, the correct answer is ‘Sclerenchyma’.