The Discovery of Cell! Discovery of Cell: The discovery of the cell dates back to later half of the 17th century when in 1665 Robert Hooke cut thin slices of cork and examined them under his own crude microscope. He found the slice of cork to be made up of small chambers which reminded him of the cells or compartments [...]
The following points highlight the three physical processes involved in the movement of materials in plant cells: 1. Diffusion 2. Osmosis and 3. Imbibition. Physical Process # 1. Diffusion: If a small bottle filled with some gas or vapours is opened at a certain place in the room, very soon its molecules become evenly distributed throughout the available space in [...]
The below mentioned article provides a study on the sclereids and sclerenchyma in plant cell with diagram. Sclereids or sclerotic cells (Fig. 537) are non-prosenchymatous cells, usually isodia- metric or irregular in shape (Fig. 537C). That is a marked point of distinction between sclereid and sclerenchyma; but it has to be taken into account that sclereids originate from parenchyma cells [...]