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प्रश्न
Answer the following question.
Explain why photosynthesis is considered the most important process in the biosphere.
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उत्तर
Photosynthesis is considered to be the most important process in the biosphere due to the following reasons:
- Photosynthesis is the biochemical process through which all plants (primary producers) produce food.
- It is responsible for the release of oxygen into the atmosphere.
- Heterotrophs are directly or indirectly dependent on autotrophs for energy and other related resources.
Therefore, photosynthesis is considered the most important process in the biosphere.
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संबंधित प्रश्न
The diagram below shows two test-tubes A and B. Test-tube A contains a green water plant. Test-tube B contains both a green water plant and a snail. Both testtubes are kept in sunlight. Answer the questions that follow:
(i) Name the physiological process that releases the bubbles of oxygen.
(ii) Explain the physiological process as mentioned above in Q2 (a)(i).
(iii) What is the purpose of keeping a snail in test-tube ‘B’?
(iv) Why does test-tube ‘B’ have more bubbles of oxygen?
(v) Given an example of a water plant that can be used in the above process.
(vi) Write the overall chemical equation for the above process.
Name the following:
The process of conversion of ADP into ATP during photosynthesis.
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow :
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger? 
Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?
The following statement is about photosynthesis in a green plant. Write whether it is True or False.
Photosynthesis occurs in all the cells of the plant.
Choose the correct answer:
Which one of the following is the best reason for leaving a plant in a dark place before carrying out experiments on photosynthesis?
The number of water molecules required in the chemical reactions to produce one molecule of glucose during photosynthesis is
Draw a neat and well-labeled diagram of the apparatus you would set up to show that oxygen is given out during photosynthesis.
Choose the Correct Answer:
A plant is kept in a dark cupboard for about 48 hours before conducting any experiment on photosynthesis to:
Autotrophs use _____,______ and chlorophyll to prepare their own food.
The role of chlorophyll is to absorb light from the sun.
