Class 7
Monera
Note on Monera
Kingdom Classification - Monera
Characteristics
- Unicellular: Organisms in this kingdom are single-celled.
- Prokaryotic: They lack a true nucleus and other membrane-bound organelles.
- Cell Wall: Most have a cell wall, but it is not made of cellulose.
- Nutrition: Can be autotrophic (photosynthetic or chemosynthetic) or heterotrophic.
- Reproduction: Primarily by binary fission.
Bacteria
- Shape: Bacteria can have various shapes:
- Cocci: Spherical (e.g., Streptococcus)
- Bacilli: Rod-shaped (e.g., Lactobacillus)
- Spirilla: Spiral-shaped (e.g., Spirillum)
- Vibrio: Comma-shaped (e.g., Vibrio cholerae)
Useful Bacteria (Applications related to daily life)
- Food Production: Used in making yogurt, cheese, buttermilk, and vinegar.
- Medicine: Used to produce antibiotics (e.g., Streptomycin) and vaccines.
- Agriculture: Nitrogen-fixing bacteria (e.g., Rhizobium) convert atmospheric nitrogen into a usable form for plants, enriching soil fertility.
- Decomposition: Decomposers break down dead organic matter, recycling nutrients in the ecosystem.
- Bioremediation: Used to clean up oil spills and other pollutants.
Harmful Bacteria (Applications related to daily life)
- Diseases: Cause various diseases in humans (e.g., Cholera, Tuberculosis, Typhoid), animals, and plants.
- Food Spoilage: Cause food to rot and become unfit for consumption.
- Denitrification: Some bacteria convert nitrates back into atmospheric nitrogen, reducing soil fertility.
Location:
/Class-7/2_2_Kingdom_Monera.mdx