TNSB - 8 - Science :: Micro organisms

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[Author - Anu Nived]

Objective: To teach the students about micro organisms and their uses

Subtopics to be covered:

- Harmful micro organisms and plant diseases

- Man and microbes

Learning Outcome:

- Students know about the various microbes that are harmful and useful to us

- They know about food preservation and pathology

[Author - Kripa S]

http://www.textbooksonline.tn.nic.in/Books/Std08/Std08-I-MSSS-TM-2.pdf#page=43 (Tamil Medium)

http://www.textbooksonline.tn.nic.in/Books/Std08/Std08-I-MSSS-EM-2.pdf#page=43 (English Medium)

[Author - Anu Nived]

https://image.shutterstock.com/z/stock-vector-anatomy-of-a-bacterial-cell-111217457.jpg (Bacterial cell)

https://upload.wikimedia.org/wikipedia/commons/thumb/1/16/Simple_diagram_of_yeast_cell_%28numbers%29.svg/966px-Simple_diagram_of_yeast_cell_%28numbers%29.svg.png (yeast cell)

http://indianapublicmedia.org/amomentofscience/files/2011/04/076_nitrogen.jpg (root nodules)

http://schoolbag.info/biology/concepts/concepts.files/image574.jpg (plant diseases caused by microbes)

http://www.botany.hawaii.edu/faculty/wong/BOT135/images/T_pedis.jpg (disease caused by fungi)

[Author - Kripa S]

1. Take two pots and fill each pot half with soil. Mark them A and B. Put plant waste in pot A and things like polythene bags, empty glass bottles and broken plastic toys in pot B. Put the pots aside. Observe them after 3-4 weeks.

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