In this article we will discuss about the structure of a cell wall in plants. This will also help you to draw the structure and diagram of cell wall in plants. Gross Structure of Cell Wall: A plant cell may consist of either primary wall only or the cell may contain both primary and secondary walls (Fig. 3.1). i. Primary [...]
Polarity is defined as the condition of having distinct poles in a pollen grain. Jackson in 1928 assumed that a pollen grain points to the poles like Silphium. Silphium laciniatum, also known as compass plant, has leaves that 'turn their edges north and south and avoid the mid-day radiation' —Willis. Pollen mother cell after meiosis forms four pollen grains that [...]
Plasmodesma (plural: plasmodesmata) is thin irregular cylinder of cytoplasm lined by plasmalemma, passing through fine pores in the cell walls, thus forming a connection between the cytoplasm of adjacent cells. They are found in higher plants and fluctuate widely in abundance and distribution. They are commonly present in primary pit fields and pit membranes of young and mature living cells [...]