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Delhi Police Constable Exam Model Paper 9
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© examsnet.com
Question : 7
Total: 100
Colour of the plants is green due to the presence of _________.
Carbon dioxide
Chlorophyll
Urea
Oxygen
Validate
Solution:
Colour of the plants is green due to the
presence of Chlorophyll.
Chlorophyll is the
green color pigment
which absorbs wavelength from sunlight.
It helps leaves to capture the energy of the sunlight and this energy is used to synthesis food from carbon dioxide and water.
Since the synthesis of food occurs in the presence of sunlight, it is called
photosynthesis
Chlorophyll
absorbs certain wavelengths of light
within the visible light spectrum.
Chlorophyll
absorbs light in the red
and the
blue regions
of the visible light spectrum.
Greenlight is not absorbed but reflected, making the plant appear green.
Chlorophyll is found in the chloroplasts of plants.
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