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प्रश्न
What is meant by photosynthesis? Why is it so important in nature?
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उत्तर
Photosynthesis: It is an anabolic process by which plants manufacture
carbohydrates or food material with the help of water and carbon dioxide in the
presence of sunlight and chlorophyll.
It is an important process as:
a. It produces food directly or indirectly for all living organisms on earth.
b. It maintains balance between oxygen and carbon dioxide in the atmosphere.
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संबंधित प्रश्न
Briefly explain the following terms: Photophosphorylation
Expand the following biological abbreviations :
ATP
Identify the false statement and rewrite it correctly by changing the first or last word only.
Green plants are consumers.
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Is there any control in this experiment? If so, state it.
Oxygen given out during photosynthesis comes from water. Explain this statement.
Respiration is said to be the reversal of photosynthesis.
Give technical term:
Name the process which is responsible for the conversion of solar energy to chemical energy that is essential to sustain life on this earth?
Choose the Correct Answer:
Which one of the following would not be a limiting factor for photosynthesis?
Where does the carbon that is used in photosynthesis come from?
A potted plant with variegated leafes was kept in dark for 24 hours and then placed in bright sunlight. Answer the following questions.
- Which aspect of photosynthesis is being tested in the above diagram?
- Why was the plant kept in the dark for 24 hours?
- After the starch test, what will be the colour of the yellow and green parts of the leaf? Give reasons to support your answer.
