Introduction and classification of bacteria ppt.
The Earth is home to a wide variety of living beings.
Bacteria ppt free download
It is estimated that about 8.7 million species of living beings are currently on the Earth of which 1.2 million species are known to us. These biotic components have total biomass of about 545.8 gigatons, of which 12.8 % is bacterial biomass, while human accounts for only 0.01%.
Interesting Science Videos
What are Bacteria?
Bacteria are microscopic, unicellular, prokaryotic organisms.
They do not have membrane-bound cell organelles and lack a true nucleus, hence are grouped under the domain “Prokaryota” together with Archae.
In a three-domain system, Bacteria is the largest domain.
( Living beings are classified into Archae, Bacteria, and Eukaryotadomain in the three-domain system.)
Bacteria, a singular bacterium, is derived from the Ancient Greek word “backērion” meaning “cane”, as the first bacteria observed were bacilli.
The study of ‘Bacteria’ is called ‘Bacteriology’; a branch of ‘Mi