Which of the following is not true?

  1. All the energy required for life processes is obtained by oxidation of some macromolecules that we call food
  2. Only green plants and cyanobacteria can prepare their own food
  3. The result of the photosynthesis is such that the light energy is trapped in the form of mechanical energy
  4. Not all the cells, tissues and organs photosynthesise in green plants
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