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प्रश्न
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow:
- Name the factor studied in this experiment.
- What will you observe in the experimental leaf after the starch test?
- Explain the process of photosynthesis.
- Give a balanced chemical equation to represent the process of photosynthesis.
- Draw a neat, labelled diagram of an experimental setup to show that oxygen is released during photosynthesis.
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उत्तर
- The factor studied in this experiment is Sunlight.
- It will be observed that only the parts of the leaf that could get sunlight turn blue-black, and the parts covered with black paper do not turn blue, as they could not synthesise starch.
- 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.
- \[\ce{6CO2 + 12H2O ->[Light energy][Chlorophyll] C6H12O6 + 6H2O + 6O2\uparrow}\]
APPEARS IN
संबंधित प्रश्न
Formalin, Iodine, DDT, Lime
Give suitable biological reasons for the following statement :
All life on Earth is supported by Photosynthesis.
Expand the following biological abbreviations :
ATP
Are the following statement true or false? Give reason in support of your answer.
The starting point of carbon cycle is the release of carbon dioxide by animals during respiration.
What is the importance of photosynthesis in the life of the following:
Non-green plants
All life on earth Would come to an end if there were no green plants.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A variegated leaf (one that has green as well as white patches) will only photosynthesize in the green areas.
State whether true or false. If false, correct the statement.
Plants lose water when the stomata on leaves are closed.
Study the pictures below and then complete the table by putting a plus (+) if the shoot or root grows towards the stimulus and a minus (-) if it grows away from it.
| Stimulus | Light | Gravity |
| Shoot | + | - |
| Root | ? | + |
What are stomata?
