Login

with the help of an experiment prove that chlorophyll is necessary for photosynthesis?

Aim:

To show that chlorophyll is necessary for photosynthesis.

Apparatus and Materials

Plant that has variegated leaves, ethanol, beaker, boiling tube, water, heat source, Iodine solution.

Method / procedure:

- Leave the plant with variegated leaves in light for 2-6 hours.

- Remove one leaf and make a labelled diagram to show the green and non-green parts.

- Test the leaf for starch.

Conclusion:

Starch is made only in areas of the leaf with chlorophyll, showing that chlorophyll is necessary for photosynthesis.

  • 27
View Full Answer
it really helped me a lot//.....
  • -6
refer lab manual
 
  • -4
its observation
 
  • -7
Please find this answer

  • 12
Please find this answer

  • 9
AIM : to show that chlorophyll is necessary for photosynthesis 
  • -2
Procedure
Detach a leaf from a variegated plant, which has been exposed to sunlight for at least three (3) hours.

Make a drawing of the leaf in your note show the pattern of green and white areas.
Test a complete leaf for starch.

Make a second drawing of the leaf along side the first to show areas coloured blue-black and orange brown with iodine.
 
Observation
The blue-black areas of the leaf correspond to the green areas of the leaf.
The white areas of the leaf shows the orange brown colour of the iodine solution.
 
Conclusion
It can be concluded that the green areas of the leave tested positive for the presence of starch due to the presence of chlorophyll. Hence, photosynthesis cannot occur without Chlorophyll.
  • 0
Please find this answer

  • 1
An experiment to show that chlorophyll is required for photosynthesis
  • -2
What are you looking for?