Food and its Constituents

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Revision as of 09:18, 20 June 2015 by Ashwinibp (talk | contribs) (Activity No 2)
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Activity No 1

test for proteins

  • Estimated Time

10 min

  • Materials/ Resources needed

- Boiled egg (Protein sample)
- Test tube
- Biurute soln

  • Prerequisites/Instructions, if any
  • Multimedia resources

{{#ev:youtube|e9cAvWaK_no| 400}}

https://www.youtube.com/watch?v=e9cAvWaK_no

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BIURET TEST- take about 5ml of the solution in a test tube add 5-6 drops of biuret solution. Wait for a while. Do not heat. A color change from blue to pink indicates the presence of protein matter in the solution.

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Activity No 2

test for carbohydrates

  • Estimated Time

5 min

  • Materials/ Resources needed

- Glucose powder
- Test tube
- Spirit lamp
- Benedicts soln

  • Prerequisites/Instructions, if any
  • Multimedia resources

{{#ev:youtube| J7glsbXAmdU| 400}}

https://www.youtube.com/watch?v=J7glsbXAmdU

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  • Process (How to do the activity)

BENEDICTS TEST- Dissolve a pinch of glucose in about 5ml water taken ina test tube. Add about 5-6 drops of benedicts reagent and heat for about 2 min. the brick red color ppt appears

  • Developmental Questions (What discussion questions)
  • Evaluation (Questions for assessment of the child)
  • Question Corner

Concept #

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Activity No #

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