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  • Design an activity to show that chlorophyll is essential for photosynthesis. Option: 1 Option: 2 Option: 3 Option: 4

Design an activity to show that chlorophyll is essential for photosynthesis.
 

Answers (2)

To show that chlorophyll is necessary for photosynthesis
 

Procedure
1.Take a plant with variegated leaves which has chlorophyll only in patches. Such leaves can be found in plants like Colcus, Tradescantia, and Croton.
2. Destarch its leaves by placing the plant in dark for 2-3 days

3. Place the plant again in daylight for about 4-6 hours. Test a leaf for the presence of starch.
Observation

Only the parts which were green previously, turn bloc-black with iodine.
Conclusion
This shows that chlorophyll is necessary for photosynthesis.

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