OBJECTIVE LIFE SCIENCE
PLANT PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
collenchyma, which are unevenly think
|
|
|
parenchyma, which are high in mitochondria needed to change shape
|
|
|
Sclerenchyma (scleroid cells) which are gritty
|
|
|
Sclerenchyma, which have think cell walls high in lignin
|
Detailed explanation-1: -Collenchyma cells have two main functions in plants, to provide flexible support to newly growing tissue and to fill in empty areas that will be later used for growth. Collenchyma are known for their living protoplast, unevenly thickened cell walls, and flexible nature.
Detailed explanation-2: -Collenchyma tissues are composed of oval or prismatic cells that are commonly elongated and can occur in long strands or cylinders. Collenchyma tissue is specialised to provide flexibility to various parts of the plant like petiole and stem since they are non lignified. It allows for easy bending without breakage.
Detailed explanation-3: -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.