Cell, Ecology, Molecular Biology

Introduction of Cell Biology Cells are tiny but complex bodies. It is difficult to see their structure; more difficult to understand their molecular composition and still difficult to find out the function of their various components.  What one can learn about cells, depends on the tools at one's disposal and, in fact, a major advances in cell biology have biology have frequently taken place with the introduction of new techniques to the study of cells. Two types of techniques 1. First techniques of Microscopy In the 1st technique for information about the structure and composition of cells, the cell biologist immediately face two limitations of Microscopy: the exceedingly small and little dimensions of cells and their components part and the transparent nature of the cells 2. The second technique of Light Microscopy The 2nd technique compound light microscope uses visible light for illuminating the object and contains glass lenses that magnify the images of the objects and focu...

  Introduction of Proteins We know that Proteins of all the  macromolecules  found in cell biology, the proteins are chemically and physically more diverse. It is a very important constituent of all cell parts forming more than 50 % of the cell's dry weight. The term protein was coined by  Dutch chemist G.J.Mulder  (1802-180) and is derived from the Greek word  proteios,  which means "of the first rank". Proteins serve the structural material of protoplasm and play essential roles in the living system's organisms. It forms enzymes of globular proteins with specialized to serve as a catalyst in virtually all types of biological activities of the cells. Other proteins are antibodies, transport proteins,  storage proteins , contraction proteins, and some hormones. Chemically, proteins are polymers, and their others name of amino acids. I. Amino acids.   Nobel Laureate  Email Fischer  (1902) discovered that all proteins consist of chain...