The following points highlight the five main changes of cell surface property of transformed cells. 1. The glycolipids and glycoproteins present on the surface of the normal cells are altered in transformed cells. The general structure of the plasma membrane is not modified. But the cell surface proteins are much more mobile in transformed cells than in normal cells. As [...]
The following points highlight the two main types of junctions. The types are: 1. Cell Junctions 2. Adherens Junctions. Type # 1. Cell Junctions: Commonly, there is a uniform intercellular space or gap of 200-300 A separating closely adjacent cells. Sometimes however, many cells in tissues are linked to each other and to the extracellular matrix at many specialised contact [...]
The following points highlight the three types of cell surface projection. The types are: 1. Cilia and Flagella 2. Pseudopodia 3. Microvilli. Type # 1. Cilia and Flagella: Cilia and flagella are similar whip-like mobile structures that extend from the plasma membranes of unicellular organisms (Paramoecium, Chlamydomonas) and many animal cells (tracheal cell, gut of worm, spermatozoon etc.) Cilia and [...]