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प्रश्न
The diagrams given below represent the relationship between a mouse and a physiological process that occurs in green plants. Study the diagrams and answer the questions that follow
(i) Name the physiological process occurring in the green plant that has kept the mouse alive.
(ii) Explain the physiological process mentioned above.
(iii) Why did the mouse die in bell jar B?
(iv) What is the significance of the process as stated in (i) for life on earth?
(v) Represent the above mentioned physiological process in the form of a chemical equation.
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उत्तर
(i) Photosynthesis
(ii) Photosynthesis is a physiological process by which plant cells containing chlorophyll produce food in the form of carbohydrates by using carbon dioxide, water and light energy. Oxygen is released as a by-product.
(iii) In bell jar B, the mouse suffocated and died because it was deprived of oxygen.
(iv) Photosynthesis can be said to be the food giver for all. Green plants synthesise their food by photosynthesis, and all other organisms are dependent on plants for their food directly or indirectly.
(v) 6CO2+12H2O `"light energy"/"chlorophyll"` C6H12O6 +6H2O+6CO2↑
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संबंधित प्रश्न
the exact location of the Thylakoids
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow :
What will you observe in the experimental leaf after the starch test?
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.
Mention one difference between the following on the basis of what is given in bracket.
Respiration and photosynthesis (gas released)
Are the following statement true or false? Give a reason in support of your answer.
The rate of photosynthesis continues to rise as long as the intensity of light rises.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The dark reaction of Photosynthesis is light-independent.
Write the functional activity of the following structure:
Granum
Read the following sentences about photosynthesis:
- Sunlight, carbon dioxide, chlorophyll and water are necessary.
- Oxygen is absorbed.
- Leaves carry out photosynthesis.
- Proteins are made during photosynthesis.
Choose the correct pair of sentences that are true to photosynthesis.
What are stomata?
Assertion (A): All food chains begin with herbivores.
Reason (R): Green plants are heterotrophs.
