5. Answer the question in brief (3)
a) Role of parenchyma
b) Lateral meristematic tissue
c) Tissue found in the bark of the tree
Answers
=> plant parents make up the bulk of leaf , flowers and the growing dividing inner part of stem and roots. they perform functions such as photosynthesis , food storage , sap secretion and gas exchange.
Answer:
a) Plant parenchyma cells make up the bulk of leaves, flowers, and the growing, dividing inner parts of stems and roots. They perform functions such as photosynthesis, food storage, sap secretion, and gas exchange.
b) lateral, meristems, which are found in all woody plants and in some herbaceous ones, consist of the vascular cambium and the cork cambium. They produce secondary tissues from a ring of vascular cambium in stems and roots.
c) The rhytidome is the most familiar part of bark, being the outer layer that covers the trunks of trees. It is composed mostly of dead cells and is produced by the formation of multiple layers of suberized periderm, cortical and phloem tissue. The rhytidome is especially well developed in older stems and roots of trees.