Biology
The experimental set-up shown alongside represents a process in plants. Study the same and answer the following questions :
- What is the aim of this experiment ?
- Name a suitable plant which can be used for the experiment. What is the habitat of this plant mentioned by you ?
- What is importance of the gas formed, shown by the bubbles, for us ?
- How would you confirm the presence of the gas in the test tube ?
- Draw a neat and labelled diagram of the same experiment in its 'initial stage.'
Photosynthesis
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Answer
The aim of this experiment is to show that Oxygen is given out during Photosynthesis.
Hydrilla plants can be used for the experiment. Hydrilla plants belong to freshwater Aquatic habitat.
The gas formed is Oxygen. Oxygen is essential for the respiration of most living organisms.
To confirm the presence of Oxygen in the test tube, I will remove the test tube with the gas carefully, and insert a glowing matchstick inside it. If the matchstick starts burning, the gas is Oxygen.
The labelled diagram of this experiment in its 'initial stage' is given below:
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