AP BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Collenchyma tissue is found immediately under the epidermis, young stems, petioles, and leaf veins. Also, it has been seen in avocado fruit hypodermis. Collenchyma cells may or may not contain a few chloroplasts, and may perform photosynthesis and store food.

Detailed explanation-3: -Where are collenchyma cells located? Collenchyma cells are found on the outside of roots and stems (secondary phloem).

Detailed explanation-4: -Roots do not have collenchyma and collenchyma is absent in monocots due to early development of sclerenchyma, which provides the mechanical support.