Question

Explain the difference on the basis of properties:
(1)Useful micro organisms and harmful micro organisms.​

Answer 1

Explanation:

Type Useful microorganisms Harmful microorganisms

Algae Anabaena (biological nitrogen fixation) blue-green algae and red tides (produce toxins)

Protozoa Paramecium (kills harmful bacteria) Plasmodium (malaria fever)

Virus polio, chicken pox (to make vaccines) HIV (causes AIDS)

Answer 2

Explanation:

Harmful Microorganisms examples: Escherichia coli O157:H7, Mycobacterium tuberculosis, Streptococcus mutans, Salmonella enteric and Chlamydophila pneumonia. Useful Microorganisms include: Saccharomyces cerevisiae, Aspergillus oryzae, L. plantarum, Thiobacillus ferrooxidans and Corynebacteria.