Nutrition in Plants

Nutrition in Plants

 Nutrition in Plants




  • Green plants are Autotroph (स्वपोषी) and synthesize their own food by the process of (प्रकाश संश्लेषण) Photosynthesis. 

  • Photosynthesis:- The process by which green plants make their own food from carbon dioxide (कार्बन डाइआक्साइड) and water (पानी) by using sunlight energy in presence of chlorophyll. 
  • Photo means [light]
  • Synthesis means [to build]


  • Chlorophyll:- It is a green coloured pigment bodies present in chloroplasts (क्लोरोप्लास्ट) inside the cells. 


Equation of Photosynthesis
  • The process of photosynthesis ((प्रकाश संश्लेषण)) takes place in the green leaves of a plants. 
  • Carbon dioxide is needed by plants which enters through tiny pores (छिद्र) present on the leaves of plants called Stomata. 
  • Water is needed (आवश्यकता है) by plants which is taken from soil. 
  • Sunlight (सूरज की रोशनी) provides energy needed to carry out chemical reactions. 
  • The green pigment present on the leaves are called Chlorophyll (क्लोरोफिल) which helps in absorbing energy from sunlight. 
  • Oxygen is produced (प्रस्तुत) as a by-product.
  • Food prepared by green leaves (हरी पत्तियां) of a plant is in the form of simple sugar called Glucose. 
  • The extra food is converted (परिवर्तित) into another food called Starch. 


Conditions necessary (ज़रूरी) for Photosynthesis
a) Sunlight
b) Chlorophyll
c) Carbon dioxide
d) Water


Raw materials for (प्रकाश संश्लेषण) Photosynthesis
a) Carbon dioxide
b) Water

Plants also needs other raw materials such as:-
  • Phosphorus
  • Magnesium
  • Iron
  • Nitrogen

Site of Photosynthesis (प्रकाश संश्लेषण की साइट) : Chloroplasts
  • Chloroplasts is the cell organelles (कोशिकांग) of the green plants. It contain chlorophyll (क्लोरोफिल) where process of photosynthesis takes place. 
  • By Light microscope, chloroplasts (क्लोरोप्लास्ट) can be easily seen. 




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