CBSE Notes for Class 7 Science english Medium 1. Nutrition in Plants
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1. Nutrition in Plants
(1) Need to take food:
(a) Get energy to do work.
(b) Build up body.
(c) Repair damages in the body.
(d) Maintain the function of the body.
(2) Plant obtain nitrogen: soil is certain bacteria that convert gaseous nitrogen int a usable from and release int the soil. These soluble plant are absrbed by the plant along with water.
(3) Photosynthesis: The procees of which green plant make their food from water and carbob dixide in presence of sunlight is called Photosynthesis.
(4) Chlorophyll: Is a green pigment fund in plants which help is phtoosynthesis.
(5) Autotrops: organisam that can make their own food are called autotrophs or producers.