Topic: Testing a Leaf for Starch
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Answers to Common Questions
What is the method for testing a leaf for starch?
The presence of starch in the leaf can be tested by the application of Iodine after removing the chlorophyll from the cells by boiling the leaf in water. Iodine reacts with starch to impart blue or black color. Read More »
Source: http://wiki.answers.com/Q/What_is_the_method_for_testing_a_leaf_f...
Why boil a leaf for starch test?
It is to kill the cytoplasm, denaturate the enzyme and makes the leaf become more permeable to the iodine solution, therefor, we have to boil a leaf for starch test Read More »
Source: http://wiki.answers.com/Q/Why_boil_a_leaf_for_starch_test
What indicator substance is used to test a leaf for starch?
I think iodine. It worked for Food. Read More »
Source: http://wiki.answers.com/Q/What_indicator_substance_is_used_to_tes...
More Common Questions
Answers to Other Common Questions
to remove the chloroplast and it will dissolve in the alcohol.
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Source: http://wiki.answers.com/Q/Why_is_a_leaf_boiled_in_alcohol_when_te...
to determine if the leaf starch is present . If it is any area containg starch will turn a blue/black colour
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Source: http://wiki.answers.com/Q/What_is_the_role_of_iodine_in_testing_a...
this experiment shows that plants do manufacture food during the process of photosynthesis and that starch is indeed present in green leaves.
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Source: http://wiki.answers.com/Q/What_would_be_the_conclusion_after_test...
A hot bath of ethanol decolorizes the leaf by washing out the chlorophyll. If the leaf is not decolorized, you cannot see the blue-black stain that results from the iodine reacting with the starch.
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Source: http://wiki.answers.com/Q/What_is_the_role_of_ethanol_in_testing_...
if when iodie is added the leaf turns blue / black it means that starch is present if it turns brown it has no starch
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Source: http://wiki.answers.com/Q/What_is_the_result_when_testing_a_leaf_...
you need to poo on it
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Source: http://wiki.answers.com/Q/How_do_you_test_a_leaf_for_starch
1. Put the leaf you want into a beaker of boiling water for about 10 seconds. 2. Then put your leaf into a test tube of ethanol and place back into the boiling water for about 10 minutes. BE CAREFUL ETHANOL IS A HIGHLY FLAMMABLE SUBSTANCE A...
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Source: http://wiki.answers.com/Q/What+are+the+steps+of+starch+test+done+...
