Write the functional activity of following :
(i) Ciliated epithelium (ii) Micropyle in seed
(iii) Stigma in flower (iv) Parenchyma
(v) Cell wall in plant cell
Answers
1)Ciliated epithelium performs the function of moving particles or fluid over the epithelial surface in such structures as the trachea, bronchial tubes, and nasal cavities. It often occurs in the vicinity of mucus-secreting goblet cells.
2)When soaked in water, the seeds absorb water mainly through the micropyle and make it available to the embryo for germination.
3)The top of the female part of the flower which collects pollen grains
4)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.
5)The Plant Cell Wall: A Complex and Dynamic Structure As Revealed by the Responses of Genes under Stress Conditions. The plant cell wall has a diversity of functions. It provides a structural framework to support plant growth and acts as the first line of defense when the plant encounters pathogens.