Category: Biology Second Paper

Bacteria that cannot survive without the presence of oxygen are called aerobic bacteria. For example- Bacillus anthracis, Azobacter beijerinckii.

Bacteria are divided into two groups based on the presence or absence of oxygen.
1. Aerobic Bacteria: Bacteria that cannot survive without the presence of oxygen are called aerobic bacteria. For example- Bacillus anthracis, Azobacter beijerinckii.
2. Anaerobic Bacteria: Bacteria that can survive without the presence of oxygen are called anaerobic bacteria. For example, Clostridium tetani.

Bacteria that are long hyphae with thin walls are called microscopic bacteria. Such as Candidatus savagella, Streptomyces.

Bacteria that look like stars are called star-shaped bacteria. Such as- Stella humosa, Stella vacuolata.

Square bacteria with four arms are called square bacteria. For example, Haloquadratum.

Bacteria that do not have a specific shape are called pleomorphic bacteria. For example, Rhizobium mayense.

Archaic bacteria are called archaic bacteria. For example – Vibrio cholera.

Bacteria that look rod-shaped are called bacillus. Different types of bacillus are-
(i) Monobacillus : Rod shaped bacteria are called monobacillus if they are single. For example- Bacillus albus, Escherichia coli.
(ii) Diplobacillus : When rod-shaped bacteria are arranged in pairs, they are called Diplobacillus. Lactobacillus, Corynebacterium diptheriae, Moraxella lacunata, Diplobacillus.
(iii) Streptobacillus: Rod-shaped bacteria are called Streptobacillus if they are arranged in chains. For example- Bacillus tuberculosis, Streptobacillus moniliformis.
(iv) Palisadebacillus : If the rod-shaped bacteria are parallel to each other and form a structure like oleic tissue, it is called palisade bacillus. For example, Lampropedia sp.
(v) Coccobacillus: If the bacteria are elongated or ovoid, they are called coccobacillus. For example – Salmonella, Mycobacterium, Coxiella burnetti.
3. Spirillum: Viruses that have a squiggly or coiled appearance are called Spirillum bacteria. For example, Spirillum minus, Treponema.

Bacteria that are round in appearance are called coccus bacteria. Different types of coccus bacteria are-
(i) Micrococcus : Spherical bacteria are called Micrococcus if they are isolated or isolated. For example, Micrococcus denitrificans, Micrococcus aureus, Micrococcus flavus.
(ii) Diplococcus : Spherical bacteria in pairs or pairs are called diplococcus. For example, Diplococcus pneumonia.
(iii) Streptococcus Streptococcus: Spherical bacteria are called Streptococcus if they are arranged in chains. For example, Treptococcus lactis, Treptococcus strep and Treptococcus pyrogens.
(iv) Tetracoccus : Spherical bacterial cells divided into two different layers and arranged in groups of four are called tetracoccus. Such as Gaffkyacoccus tetragena, Tetracoccus sp.
(v) Staphylococcus : Spherical bacteria clustered together like bunches of grapes are called Staphylococcus. For example, Staphylococcus aureus.
(vi) Sarcina : A certain number of spherical bacterial cells arranged regularly is called Sarcina. For example – Sarcina lutea.

1. Coccus
Bacteria that are round in appearance are called coccus bacteria. Different types of coccus bacteria are-
(i) Micrococcus : Spherical bacteria are called Micrococcus if they are isolated or isolated. For example, Micrococcus denitrificans, Micrococcus aureus, Micrococcus flavus.
(ii) Diplococcus : Spherical bacteria in pairs or pairs are called diplococcus. For example, Diplococcus pneumonia.
(iii) Streptococcus Streptococcus: Spherical bacteria are called Streptococcus if they are arranged in chains. For example, Treptococcus lactis, Treptococcus strep and Treptococcus pyrogens.
(iv) Tetracoccus : Spherical bacterial cells divided into two different layers and arranged in groups of four are called tetracoccus. Such as Gaffkyacoccus tetragena, Tetracoccus sp.
(v) Staphylococcus : Spherical bacteria clustered together like bunches of grapes are called Staphylococcus. For example, Staphylococcus aureus.
(vi) Sarcina : A certain number of spherical bacterial cells arranged regularly is called Sarcina. For example – Sarcina lutea.
2. Bacillus
Bacteria that look rod-shaped are called bacillus. Different types of bacillus are-
(i) Monobacillus : Rod shaped bacteria are called monobacillus if they are single. For example- Bacillus albus, Escherichia coli.
(ii) Diplobacillus : When rod-shaped bacteria are arranged in pairs, they are called Diplobacillus. Lactobacillus, Corynebacterium diptheriae, Moraxella lacunata, Diplobacillus.
(iii) Streptobacillus: Rod-shaped bacteria are called Streptobacillus if they are arranged in chains. For example- Bacillus tuberculosis, Streptobacillus moniliformis.
(iv) Palisadebacillus : If the rod-shaped bacteria are parallel to each other and form a structure like oleic tissue, it is called palisade bacillus. For example, Lampropedia sp.
(v) Coccobacillus: If the bacteria are elongated or ovoid, they are called coccobacillus. For example – Salmonella, Mycobacterium, Coxiella burnetti.
3. Spirillum: Viruses that have a squiggly or coiled appearance are called Spirillum bacteria. For example, Spirillum minus, Treponema.
4. Archaic bacteria: Archaic bacteria are called archaic bacteria. For example – Vibrio cholera.
5. Pleomorphic: Bacteria that do not have a specific shape are called pleomorphic bacteria. For example, Rhizobium mayense.
6. Square shaped bacteria: Square bacteria with four arms are called square bacteria. For example, Haloquadratum.
7. Star-shaped bacteria: Bacteria that look like stars are called star-shaped bacteria. Such as- Stella humosa, Stella vacuolata.
8. Hyphae or Microscopic Bacteria: Bacteria that are long hyphae with thin walls are called microscopic bacteria. Such as Candidatus savagella, Streptomyces.