Two principal modes of cell death are now recognized, namely necrosis and apoptosis. Both may follow cell injury but the nature of the two types of death are quite different. Mode # 1. Cell Necrosis: The changes in cells undergoing necrosis are essentially a continuation of those described above, in cell injury. However, they are, of course, more profound and [...]
The following points highlight the top four historical models of Plasma Membrane. The models are: 1. Lipid and Lipid Bilayer Models 2. Unit Membrane Model (Protein-Lipid Bilayer-Protein) 3. Fluid Mosaic Model 4. Dannelli Model. 1. Lipid and Lipid Bilayer Model: This model to explain the structure of plasma membrane was given by Overton, Gorion and Grendel. Previously only indirect information [...]
The following points highlight the two main types of cell. The types are: 1. Eukaryotic Cell 2. Prokaryotic Cell. Type # 1. Eukaryotic Cell: In addition to the nucleus, the cytoplasm of the cell usually contains a number of distinct bodies or structures that presumably carry out one or more rather specific functions. For purposes of discussion, the components of [...]