Testing leaves for starch After photosynthesis, green plants store glucose as starch in their leaves.
What you will test. <ul><li>You will test  2  leaves: </li></ul><ul><li>One from a plant left in the  light . </li></ul><u...
Put the 2 leaves in boiling water to kill them
Place the leaves in a boiling tube with ethanol
wait until all the green colour disappears from the leaves
Remove the leaves
Wash the leaves
Spread the leaves out on a white tile
carefully add iodine to the leaves
Wait a few minutes and note the colour of the leaves
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Testing A Leaf For Starch

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  • testing of starch and protien in plants
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  • what colour does the leaf go if there is or isnt any starch
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  • is there any alternative replacement for ethanol and iodine?
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  • the leaves were tested already and they hve starch..but can we get the starch from it?if so..how?pls answer i need it for my project..pls
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  • why is the leaf rinsed in the water before the iodine solution is applied to it?
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Testing A Leaf For Starch

  1. 1. Testing leaves for starch After photosynthesis, green plants store glucose as starch in their leaves.
  2. 2. What you will test. <ul><li>You will test 2 leaves: </li></ul><ul><li>One from a plant left in the light . </li></ul><ul><li>One from a plant kept in the dark . </li></ul>
  3. 3. Put the 2 leaves in boiling water to kill them
  4. 4. Place the leaves in a boiling tube with ethanol
  5. 5. wait until all the green colour disappears from the leaves
  6. 6. Remove the leaves
  7. 7. Wash the leaves
  8. 8. Spread the leaves out on a white tile
  9. 9. carefully add iodine to the leaves
  10. 10. Wait a few minutes and note the colour of the leaves
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