To show that carbon dioxide is essential for photosynthesis.
Getting the proper nutrition and energy is essential for all living creatures, including humans and animals! It is the key to staying alive and healthy. Carbon dioxide is one of the essential components in this process. It helps in the production of food and energy for survival.
What is carbon dioxide?
Fig.1 Conversion process of photosynthesis
Steps involved in the photosynthesis
Fig.2 Process of photosynthesis
|Role of role of carbon dioxide
|For glucose production
|Carbon dioxide combines with light energy to produce glucose molecules, which also play a role in storing food.
|Regulation of Photosynthesis Rate
|The increased availability regulates the rate of photosynthesis, resulting in a significant production of oxygen.
|Role in Global Carbon Cycle
|It is a key component in the global carbon cycle, facilitating the exchange of carbon and oxygen within the ocean and terrestrial ecosystems through the process of photosynthesis.
In this experiment, the leaf is dipped into the KOH solution to avoid leaf exposure in the atmosphere and absorbs carbon dioxide in and around the test tube and leaf.
The alcohol is used to extract or separate the chlorophyll (the green pigment) and allows for clear observation while using indicator medium.
It serves as an indicator to reveal the presence of starch by the colour change of blue-black in the sample thereby demonstrating the process of photosynthesis.
Students learn and understand,