Question

Write two useful effects of various microorganisms

Answer 1

Answer:

Microorganisms are small organisms invisible to the naked eye because of their extremely small size. They are grouped into various groups like Bacteria, fungi, algae, protozoa and viruses. Many of these organisms are useful to human and nature while some are harmful and even cause diseases.

Bacteria- Lactobacillus (curd bacteria)

Fungi- Penicillium notatum (to make antibiotics)

Algae- Anabaena (biological nitrogen fixation)

Protozoa- Paramecium (kills harmful bacteria)

Virus-polio, chicken pox (to make vaccines)

Answer 2

Answer:

1- Microorganisms help us in making alcohol. E.g. Yeast, Zymomonas mobilis, Schizosaccharomyces.

2- Microorganisms help us in bakery. E.g. Yeast.