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प्रश्न
How would you demonstrate that green plants release oxygen when exposed to light?
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उत्तर
- Place some water plants (Elodea or Hydrilla) in a beaker containing pond water and cover them by a short-stemmed funnel.
- Invert a test tube full of water over the stem of the funnel. (Ensure that the level of water in the beaker is above the level of the stem of the inverted funnel.)
- Place the apparatus in the sun for a few hours (in Fig). Bubbles of the gas will collect in the test tube.
- Test the gas in the test tube. A glowing splinter bursts into flame, which shows the presence of oxygen.
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संबंधित प्रश्न
Name the following:
The main mineral constituent of chlorophyll.
Name the following:
The source of carbon dioxide for aquatic plants.
A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.
During the starch test, why was the leaf
(1) boiled in water
(2) boiled in methylated spirit
Why Is Photosynthesis Important in Nature?
Chlorophyll is necessary for photosynthesis.
Name the following:
The site of light reaction in the cell of a leaf.
Name the following:
Light in which the maximum rate of photosynthesis takes place.
Choose the Odd One Out
Choose the Odd One Out
