Tag «macromolecules»

Cell Wall

Plant and bacterial cell membranes are surrounded by a thick cell wall. Bacterial cell wall The bacterial cell is enclosed within a wall that differs chemically from the cell wall of plants. The cell wall contains a rigid framework of polysaccharide chain cross linked with short peptide chains and its outer surface is coated with …

Microscopy

The cells are very minute and complex organisations. The small dimensions and transparent nature of cell and its organelles pose problems to cell biologists trying to understand its organisation and functioning. Various instruments and techniques have been developed to study cell structure, molecular organization and function. The diameters of majority of cells range from 5-500 …