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In dicot leaves we find more stomata on the lower surface when compared to the upper surface. So lower surface will have more guard cells hence more chlorophyll but even then it appears light green in color when compared to the upper surface why?

In dicot leaves we find more stomata on the lower surface when compared to the upper surface. So lower surface will have more guard cells hence more chlorophyll but even then it appears light green in color when compared to the upper surface why?

Grade:12th pass

2 Answers

kavin bala s
39 Points
4 years ago
My dear Roy there is no need of chlorophyll in respiration.plants obtain solar energy on upper side of leaf.as chlorophyll is needed for photosynthesis chlorophyll is more on upper side so it looks greener.may I hope this may resolve your doubt.
Umakant biswal
5359 Points
4 years ago
DEAR ARUNDHATI 
Photosynthesis is the process of trapping sunlight and converting the energy into chemical energy which is then provided as a food source.
So the sunlight is trapped through chlorophylls. This is a pigment in the organelle called the chloroplast. The upper surface of the leaf is open to sunlight where the plants have more chloroplasts containing more chlorophylls to trap the most amount of sunlight
All these chlorophylls are green coloured and since there is an increased amount of chlorophylls in the upper surface than in the lower surface (to trap more and more sunlight), the upper surface appears to be greener than the lower surface.. 
HOPE ITS CLEARS NOW 
REGARDS 

 

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