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प्रश्न
Study the diagram given below and fill in the blanks with suitable words:
In order to prove that carbon dioxide is necessary for
(a) ______, a potted plant is placed in dark for 48 hours to (b) ______ the leaves. A part of a leaf is inserted into a conical flask containing potassium hydroxide solution. This is to absorb (c) ______ from the flask. The plant is then placed in sunlight for a few hours. The experimental leaf is tested for starch. The part of the leaf that was inside the conical flask turns (d) ______, whereas the part of the left outside turns (e) ______ in colour.
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उत्तर
(a) Photosynthesis, a potted plant is placed in dark for 48 hours to (b) destarch the leaves. A part of a leaf is inserted into a conical flask containing potassium hydroxide solution. This is to absorb (c) carbon dioxide from the flask. The plant is then placed in sunlight for a few hours. The experimental leaf is tested for starch. The part of the leaf that was inside the conical flask turns (d) colourless, whereas the part of the left outside turns (e) blue-black in colour.
संबंधित 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:
- Name the physiological process occurring in the green plant that has kept the mouse alive.
- Explain the physiological process mentioned above.
- Why did the mouse die in bell jar B?
- What is the significance of the process as stated in (i) for life on earth?
- Represent the above mentioned physiological process in the form of a chemical equation.
Give biological explanations for Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered.
Give suitable biological reasons for the following statement :
All life on Earth is supported by Photosynthesis.
Complete the following food chain by writing the names of appropriate organisms in the blanks:
Grass → __________ → Snake → __________
Complete the following food chain by writing the names of appropriate organisms in the blank:
Grass → __________ → Lion
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
KOH absorbs CO2.
During photosynthesis, plants exhale ______.
Only green plants have the unique capacity to release ______ into the atmosphere.
The raw materials for photosynthesis are ______ and ______.
Which gas evolved during photosynthesis?
