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प्रश्न
Fig. demonstrates a physiological process taking place in green plants. The whole set-up was placed in bright sunlight for several hours. Study the diagram and answer the questions that follow:
- What aspect of the physiological process is being examined?
- Explain the physiological process mentioned in (a) above.
- Label the parts numbered 1 and 2 in the diagram.
- Write a well-balanced chemical equation for the physiological process explained in (b) above.
- What would happen to the rate of bubbling of the gas if a pinch of sodium bicarbonate is added to the water in the beaker? Explain your answer.
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उत्तर
- The aspect being examined is the release of oxygen during Photosynthesis.
- Photosynthesis is the process by which living plant cells, containing chlorophyll, produce food substances (glucose and starch) from carbon dioxide and water, using light energy. Plants release oxygen as a by-product during photosynthesis.
- 1: Oxygen
2: Hydrilla plant - \[\ce{6CO2 + 12H2O ->[Light energy][Chlorophyll] C6H12O6 + 6H2O + 6O2 \uparrow}\]
- Sodium bicarbonate releases carbon dioxide into the water, which is made available to the plant. This increases the rate of photosynthesis. So more oxygen is released thus more bubbles are released.
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संबंधित प्रश्न
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
(ii) Name the tropic movement shown by part 1.
Mention two ways in which photosynthesis is useful to life.
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Land plants obtain their carbon dioxide from the atmosphere.
The diagram alongside represents an experiment conducted to prove the importance of a factor in photosynthesis.
Study the same and then answer the questions that follow:
(i) Name the factor being studied in his experiment.
(ii) Why was the plant kept in a dark room before conducting the experiment?
(iii}Why was the experimental leaf then kept in
1. boiling water 2. methylated spirit?
(iv) Name the solution used to test for the presence of starch in the leaf.
(v) What will we observe in the experimental leaf at the end of the starch test?
(vi) Give a balanced chemical equation to represent the process of photosynthesis.
How is the rate of photosynthesis affected when a green plant gets the green light?
What is the law of limiting factors?
Explain the term Plastoquinone.
Choose the correct option.
Energy is transferred from the light reaction step to the dark reaction step by ______.
Choose the correct option.
In maize and wheat, the first stable products formed in bundle sheath cells respectively are ________.
Give an example for micronutrients.
