NEET Botany Mineral Nutrition Questions Solved

The deficiency symptoms of mobilizable substances appear first in Older parts because

  1. In order to mobilize the elements to young part, the biomolecules of older parts are broken down
  2. In order to mobilize the elements the older part becomes weaker
  3. The work of mobilization is random and takes a lot of energy to cause it
  4. All of these
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