Question

write the detailed account of the experiment you did to prove that CO2 essential for photosynthesi​

Answer 1

Answer:

Experiment to prove that CO2 essential for photosynthesi​s

To prove the necessity of carbon dioxide in photosynthesis following steps need to do

Insert a part of the leaf of a destarched plant into a conical flask containing potassium hydroxide.

Potassium hydroxide solution absorbs the carbon dioxide gas from the air present in the glass bottle.

Leave the plant sunlight.

After few hours, perform a starch test to this and another leaf of the same plant.

• Observation

Leaf exposed to the atmosphere are bluish black.

Leaf exposed to KOH does not change to blue-black colour

• Result

Starch is present in the green part of the leaf.

• Conclusion

Presence of starch proves that chlorophyll is necessary for photosynthesis as it traps sunlight.

Hope it helps

Answer 2

Photosynthesis is a process used by plants to convert light energy from sun into chemical energy. This chemical energy is synthesized by carbon dioxide that's why Co2 is essential for photosynthesis.