Question

prove that sunlight is essential for photosynthesis​

Answer 1

Answer:

To show experimentally that light is essential for photosynthesis. Apparatus and materials required: ... Photosynthesis is a biochemical process by which green plants s5mthesize simple sugar in the presence of sunlight using carbon dioxide from the atmosphere and water from the soil.

Explanation:

Answer 2

$\huge{\orange{\underline{\green{\mathscr{Activity\: -\: 01}}}}}$

$\:\sf\underline\red{To\:Find}\:$ :-

Sunlight essential for photosynthesis.

$\:\sf\underline\blue{Requirement}\:$ :-

• a potted plant

• black paper

• clamp

• iodine solution

$\:\sf\underline\purple{Method}\:$ :-

• Place a potted plant in dark for 48 to 72 hours to make the leaves starch less, attach black paper strips on both the sides of a leaf with the help of a cello tape.

• Place the plant in sunlight and after 3 to 4 hours . Pluck the same leaf and remove black paper strips.

• Now, boil the leaf for 10 minutes in water and 10 minutes in alcohol over a water bath.

• After washing the leaf put it into iodine solution and observe the change it colour.

$\:\sf\underline\orange{Observatiom}\:$ :- The part that was covered with a black strip does not change it to blue - black colour in iodine solution, at rest leaf changes it to blue black colour. This means starch is formed in that part only that was receiving a sunlight or photosynthesis has occurred that what only that was receiving sunlight.

$\:\sf\underline\red{Conclusion}\:$ :-

The above experiment shows that sunlight is necessary for photosynthesis.