Thursday, January 26, 2012

P5 Science - Test for starch in leaves


Watch and observe!


Iodine solution with food


The link - http://www.youtube.com/watch?v=P9qyEq5-IIQ&feature=related


Iodine solution with leaves

The link to watch -  http://www.youtube.com/watch?v=VeU7ULL9Usw

 Mrs Lim

9 comments:

  1. they must kill the leaf because it easier to see if starch is preasent

    ReplyDelete
  2. It is to kill the cytoplasm,denaturate the enzyme and make a leaf become more permeable to the iodine solution,therefor,we have to boild a leaf for starch test




    jolene chan (3)

    ReplyDelete
  3. they need to kill the leaves so that the starch can be seen easier. by zac lim

    ReplyDelete
  4. Pg 4         Reason : To see if the plant need sunlight to grow .
                   2) no , the leave cannot receive any sunlight . 
                   3) no the leaf will not be able to make food .
                     Why? : The black paper is blocking the sunlight so the leave cannot            
                                   asborb any sunlight . 
             -------finish------- ^^
    Vanassa Ang 

    ReplyDelete
  5. they must ki ll the leaf so that to find out whether starch is present..(jolene)

    ReplyDelete
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