Page 19 - Genius Kidz Prudence Learning Sc-8

MICROBIAL CLASSIFICATION

Micro-organisms are divided into five major categories :

1. Bacteria

Anabaena spiroides Bacilli Cocci Salmonella

2. Fungi

Panellus stipticus Artomyces pyxidatus Rhodotus palmatus Shutterstock

3. Protozoa

Amoeba Euglena Paramecium Giardia

4. Algae

Spirogyra Chlamydomonas Open Stomata Red laminaria

5. Viruses

Tobacco mosaic Adeno virus Rabies Bacteriophase
1. Bacteria (singular : bacterium) : Bacteria (i) Rod shaped bacilli : They are of the
are unicellular prokaryotes : shape of a rod e.g Lactobacillus,

(a) Habitat : They are found in air, water Pseudomonas, etc.
and soil or we can say that they are
omnipresent.

(b) Size : Size of bacteria ranges from
–3
.15 mm to 5 mm (1 mm = 10 mm)
(c) Shape : Bacteria can be of different
shapes :
Rod shaped bacilli

DNA was first discovered by Swiss Friedrice Miescheles in 1869.

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