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प्रश्न
Long answer question.
In order to carry out photosynthesis, what are the substances that a plant must take in? Also mention their sources.
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उत्तर
For preparing food, the plants require the following :
- Water (from the soil)
- Carbon dioxide (from the air)
- Chlorophyll (contained in the leaf)
- Energy (from sunlight)
The process of preparing or synthesizing food using water from the soil and carbon dioxide from the air, together chlorophyll and sunlight is called photosynthesis. This entire process is a series of complex chemical reactions Photosynthesis is represented as follows:
\[\ce{carbon dioxide + water ->[chlorophyll][sunlight]glucose +oxygen}\]
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संबंधित प्रश्न
Suppose we compare the leaf with a factory, match the items in Column A with those in Column B.
| Column A | Column B | ||
| Left | Factory | ||
| 1 | Cells in the leaf | a | Raw materials |
| 2 | Chloroplast | b | Power |
| 3 | Sunlight | c | Machinery |
| 4 | Oxygen and water | d | End product |
| 5 | Carbon dioxide and water | e | By product |
| 6 | Glucose | f | Workroom |
State whether the following statement is True or False:
The free oxygen in the atmospheric air is the result of photosynthesis.
Tick the most appropriate answer.
Exhaled air contains
Identify true statement regarding light reaction of photosynthesis.
Draw and label the structure of oxysomes.
Photorespiration is favoured by :
Law of limiting factor is
Photosynthetic organisms occur at different depths in the ocean. Do they receive qualitatively and quantitatively the same light? How do they adapt to carry out photosynthesis under these conditions?
In tropical rain forests, the canopy is thick and plants growing below receive filtered light. How are they able to carry out photosynthesis?
According to Blackman, respiration of carbohydrates and fats is ______.
