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ICSE Class 8 Answered

define the following 1) root pressure      2)diffusion 3)active transport  
Asked by nathsantanukumar | 03 Apr, 2018, 06:39: PM
answered-by-expert Expert Answer
  1. Root pressure: The positive pressure created by the movement of water from the roots to the soil for upward movement of water is called root pressure.    
  2. Diffusion: Diffusion is the movement of a substance from its higher concentration to its lower concentration when the two are in direct contact.
  3. Active transport: The process of transport of materials across the biological membrane with the help of a mobile carrier protein involving the expenditure of energy in the form of ATP is called active transport.
Answered by Sheetal Kolte | 04 Apr, 2018, 12:04: PM

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