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प्रश्न
Write an experiment to demonstrate that CO2 is necessary for photosynthesis.
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उत्तर
Take a destarched plant. Insert one of its leaves in a conical flask, which contains potassium hydroxide. Leave it in the sunlight. After a few hours, test this and any other leaf of this plant for starch. The leaf which was exposed to the atmospheric air becomes blue-black, and the one in the flask containing KOH does not become blue-black after the iodine test. The experiment showing that CO2 is necessary for photosynthesis.
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संबंधित प्रश्न
Formalin, Iodine, DDT, Lime
Expand the following biological abbreviations: ATP
Fill in the blank:
Photosynthesis produces oxygen and ______.
Name the following:
The first form of food substance produced during photosynthesis.
Give technical term:
What is the percentage of CO2 in the air?
Write the functional activity of the following structure:
Chloroplasts
What will happen if we remove plants from the aquarium?
The chemical reaction occurs during photosynthesis is ______.
Oxygen is used for the synthesis of protein and fertilizers.
An organism A which cannot move from one place to another makes a simple food B from the substances C and D available in the environment. This food is made in the presence of green-colored substance E present in organs F in the presence of light energy in a process called G. Some of the simple food B also gets converted into a complex food H for storage purposes. Does this food give a blue-black color with iodine solution?
a. What is
- organism A
- food B?
- food H?
b. What are C and D?
c. Name green-colored substance E and organ F.
d. What is the process G?
