write an activity to show that carbon dioxide is necessary for photosynthesis
Answers
Answer:
Aim: To show that carbon dioxide is necessary for photosynthesis
Procedure:
Take a plant with destarched leaves.
Insert one of its leaves in a conical flask containing potassium hydroxide.
Leave the plant in sunlight.
After a few hours, test the particular leaf and some other leaf of the same plant for the presence of starch.
Observation:
The leaf which was inserted in the conical flask stains brown, and the other leaf which is exposed to sunlight turns blue-black.
Inference:
Potassium hydroxide in the flask absorbs carbon dioxide; thus, due to the absence of CO2, the leaf fails to produce starch which proves that carbon dioxide is necessary for photosynthesis.
Explanation:
Answer:
Aim: To show that carbon dioxide is necessary for photosynthesis
Procedure:
Take a plant with destarched leaves.
Insert one of its leaves in a conical flask containing potassium hydroxide.
Leave the plant in sunlight.
After a few hours, test the particular leaf and some other leaf of the same plant for the presence of starch.