NEET BIOLOGY

Detailed explanation-1: -Collenchyma tissue is composed by elongated living cells of uneven primary thick walls, which possess hemicellulose, cellulose, and pectic materials. It provides support, structure, mechanical strength, and flexibility to the petiole, leaf veins, and stem of young plants, allowing for easy bending without breakage.

Detailed explanation-2: -Collenchyma cells are elongated cells having thick cell walls composed of cellulose and pectin which enable them to provide additional support to the plant. Intercellular spaces are particularly present to maintain the flexibility in the tissue to avoid breakage. So, the correct answer is option A.

Detailed explanation-3: -collenchyma, in plants, support tissue of living elongated cells with irregular cell walls. Collenchyma cells have thick deposits of cellulose in their cell walls and appear polygonal in cross section. The strength of the tissue results from these thickened cell walls and the longitudinal interlocking of the cells.

Detailed explanation-4: -Collenchyma is a supporting tissue characteristic of the growing organs of many herbaceous and woody plants, and it is also found in stems and leaves of mature herbaceous plants, including those that are only slightly modified by secondary growth.