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Question

A Hydrilla plant is kept in a beaker containing water. It is covered with an inverted glass funnel and a test tube full of water is placed over it .Care is taken about the water level so that no bubble enters the test tube. The whole experiment is put in sunlight. It is found that the level of water is coming down and a gas accumulates at the upper end of the test tube. The whole experiment is conducted in red, blue and green light alternatively. After sometime some amount of Sodium bicarbonate is added to the beaker.

Which statement is correct?


A

Photosynthesis occurs in animals

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B

Photosynthesis occurs in green plants

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C

Photosynthesis occurs in non-green plants

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D

Photosynthesis occurs in fungus

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Solution

The correct option is B

Photosynthesis occurs in green plants


The correct option is (B):
Explanation for the correct option:

  1. Photosynthesis is the process by which green plant cells prepare food by utilizing CO2, H2O, and chlorophyll in the presence of sunlight.
  2. During this process, carbon dioxide and water are converted into carbohydrates.
  3. During photosynthesis, water is photolyzed into oxygen and hydrogen and it provides the energy for photosynthesis.
  4. Reaction:
    1. 6CO2 + 6H2OChlorophyllSunlightC6H12O6 + 6O2

Final answer: Photosynthesis occurs in green plants.


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