Bacteria are very small and simplest type of microorganisms. They do not have true nucleus. The bacteria are found to be present in everywhere, i.e., in air,water,soil and particularly in all such habitats which are usually rich in ogranic contents.
The bacteria was first discovered by Anton Von Leeuwenhoek in the year 1675.
Following are some characters of bacteria:
a. Bacteria are microscopic organisms, with average diameter ranging from 0.5 micron to 1.5 micron in case of sperical bacteria whereas rod shaped filamentous forms are about 0.5 micron yo 1.5 microns in length and 0.2 to 1 micron in width.
b. Bacteria are unicellular organisms.
c. Bacteria are mostly saprophytes, some are parasites and a very few are autotroph.
d. Bacteria possess a definite cell wall surrounding the inner protoplasm.
e. Bacteria are prokaryotic organisms, i.e., they do not have a true nucleus.
f. Except ribosome and mesosome other cell organelles are not present.
g. Reproduction takes place by means of spore formation and cell division.
The bacteria was first discovered by Anton Von Leeuwenhoek in the year 1675.
Following are some characters of bacteria:
a. Bacteria are microscopic organisms, with average diameter ranging from 0.5 micron to 1.5 micron in case of sperical bacteria whereas rod shaped filamentous forms are about 0.5 micron yo 1.5 microns in length and 0.2 to 1 micron in width.
b. Bacteria are unicellular organisms.
c. Bacteria are mostly saprophytes, some are parasites and a very few are autotroph.
d. Bacteria possess a definite cell wall surrounding the inner protoplasm.
e. Bacteria are prokaryotic organisms, i.e., they do not have a true nucleus.
f. Except ribosome and mesosome other cell organelles are not present.
g. Reproduction takes place by means of spore formation and cell division.
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