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प्रश्न
Why is it not possible to demonstrate respiration in a green plant kept in sunlight?
Give reasons/explain:
It is not possible to demonstrate respiration in a green plant kept in sunlight.
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उत्तर १
If a green plant is kept in bright light, it tends to use up all the CO2 produced during respiration for photosynthesis. Thus, the release of CO2 cannot be demonstrated. Hence, it is difficult to demonstrate respiration as these two processes occur simultaneously.
उत्तर २
When a plant is kept in sunlight, CO2 released by respiration gets used by photosynthesis to synthesise food. So no carbon dioxide is liberated, and respiration cannot be demonstrated.
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संबंधित प्रश्न
Name the following:
The main mineral constituent of chlorophyll.
How would you demonstrate that green plants release oxygen when exposed to light?
Given below is a schematic diagram to illustrate some aspects of photosynthesis.
- Fill up the gaps, in blank spaces (1-4), by writing the names of the correct items.
- What phenomenon do the thick arrows A and B indicate?
Given below is the representation of a certain phenomenon in nature. With four organisms 1-4.
- Name the phenomenon represented.
- Name any one organism that could be shown at No. 5.
- Name the biological process which was the starting point of the whole chain.
- Name one natural element which all the organisms 2-4 and even 5 are getting from No. 1 for their survival.
Given below is the representation of a certain phenomenon in nature. With four organisms 1-4.
Name any one organism that could be shown at No .5
Given alongside is the diagram of an experimental set-up:
Will it work satisfactorily? Given reason.
Given alongside is the diagram of an experimental set-up:
Would you take any step before starting the experiment? Describe this step and explain its necessity.
Why Is Photosynthesis Important in Nature?
Write the overall chemical equation for photosynthesis.
Given below is the figure of an experimental set-up, showing a physiological act of the plants. Study and answer the following questions:
- What is the objective of this experiment?
- Name and define the process shown here.
- Why do we destarch the leaves before performing the experiment?
- How do we destarch the leaves?
- What will be the observation when we pour iodine solution over the bleached experimental leaf?
- Write a well-balanced equation for the above process.
