Showing posts from November, 2021
Bacterial cell is consisting of various structural components. Cell wall is one of the most important component. Cell wall present outside of the bacterial cell membrane. It gives rigidity, protection and shape to the bacterial cell. Based on the…
Gram staining is a technique used to differentiate two major groups of bacteria based on their cell wall composition called gram positive and gram negative bacteria. The technique was named after Hans Christian Gram who developed this method in 18…
Transcription is a heterocatalytic function of DNA which involves transfer of coded information from DNA through the synthesis of RNA over the template of DNA. Only one of the strand of DNA called sense strand (master strand) is involved. The segm…
The metabolism applies to the assembly of biochemical reactions which are employed by the organisms for the synthesis of cell materials and for the utilization of energy from their environments. Metabolism may be defined as 'the sum total of al…
Robert Whittaker (1969), proposed the first popular classification system called five-kingdom system, which was accepted widely. The classification system is based on three criteria. 1. Cell types Prokaryotie (cells with primitive nucleus and lack…
