TNSB - 7 - Science :: Food habits of Plants and Animals
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[Author - Anu Nived]
Objective: To teach the students about various nutrition modes in plants and animals
Subtopics to be covered:
- Human digestive system
- Nutrition in Amoeba
Learning Outcome:
- Students know about parasites and saprophytes
- They know about ruminants and their digestion process
- They know about the structure of teeth and care to be taken
[Author - Kripa S]
http://www.textbooksonline.tn.nic.in/Books/Std07/Std07-I-MSSS-TM-2.pdf#page=14 (Tamil Medium)
http://www.textbooksonline.tn.nic.in/Books/Std07/Std07-I-MSSS-EM-2.pdf#page=13 (English Medium)
[Author - Anu Nived]
http://www.clipartbest.com/cliparts/4c9/6EG/4c96EG4ni.jpg (human digestive system)
https://upload.wikimedia.org/wikipedia/commons/thumb/d/db/Photosynthesis.gif/220px-Photosynthesis.gif (photosynthesis)
https://ahdictionary.com/application/resources/arts/A5venusflytrap.jpg (insectivorous plant)
https://dr282zn36sxxg.cloudfront.net/datastreams/f-d%3Ad635d27068c032b2d2149a245066c51025812d5f6951bfd5b9a9f7d4%2BIMAGE%2BIMAGE.1 (symbiotic plant - lichen)
[Author - Kripa S]
1. Ask the students to identify the different types of teeth in their mouth.
2. . Prepare a separate sample each of (i) sugar solution, (ii) common salt solution, (iii) lemon juice and (iv) juice of crushed neem leaf or bitter gourd. Blindfold one of your classmates and ask her/him to take out the tongue and keep it in straight and flat position. Use a clean toothpick to
put the above samples one by one on different areas of the tongue as shown in Fig. 2.6. Use a new toothpick for each sample. Ask the classmate which areas of the tongue could detect the sweet, salty, sour and bitter substances. (Textbook activity)
[Author - Utthra Ananth]
https://drive.google.com/open?id=0BzNF2YyqQxJ-NFcwd3lack5wTU0 (Answer Key 2)
https://drive.google.com/open?id=0BzNF2YyqQxJ-LUJEV2N0QTRuN28 (PPT)
[Author - Gayathri Arun]
| Term | Transliterated Term | Translated Term | |
| organism | ஆர்கனிசம் | உயிரி | |
| source | சோர்ஸ் | மூலம், பிறப்பிடம், வாயில் | |
| enzymes | என்சைம் | நொதி | |
| stagnant | ஸ்டாஞன்ட் | தேங்கிய | |
| ferment | ஃபெர்மென்ட் | கொந்தளிப்பா, நொதி |
[Author - Utthra Ananth]
https://drive.google.com/open?id=0BzNF2YyqQxJ-M2RHSnhVWEJkMGc (Worksheet 1)
https://drive.google.com/open?id=0BzNF2YyqQxJ-NEZnekhTd2sxc3M (Worksheet 2)
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