Learn Class 8 Science - Microorganisms

Microorganisms are organisms that are too small to view with the naked eye. The majority of these species are single-celled.

Bacteria, the All Around Us

Bacteria

• Bacteria are prokaryotic bacteria that have only one cell.
• Some bacteria are beneficial to humans, while others are potentially dangerous.
• Among these four types are Vibrio, Bacillus, Cocci, and Spirilla.

Probiotics

Probiotics are living bacteria and yeasts beneficial to one's overall health, particularly the digestive system.

Fungi are fond of death

Fungi

• Fungi are organisms that are either saprophytic or parasitic.
• They are primarily multicellular and not microscopic.
• On the other hand, Yeast is a single-celled organism with a tiny size.

Fermentation

• The fermentation process consists of turning sugars into acids, gases, or alcohols.
• Fermentation makes both curd and alcoholic beverages possible.

Creepy Protozoans

Protozoa

• Flagellates, ciliates, sporozoans, and various other single-celled tiny creatures are all examples of protozoa.
• Amoeba, paramecium, euglena, plasmodium, and other organisms are only a few examples.

Viruses in the Real World

Viruses

• Viruses are nucleic acid-containing creatures that cannot replicate.
• As a result, a virus cannot survive without a living cell.
• Viruses are similarly thought to be on the edge of being both alive and nonliving.
• Viruses such as influenza, HIV, Rabies, poliovirus, tobacco mosaic virus, and others are just a few examples.