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Plant Growth and Mineral Nutrition — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYPlant Growth and Mineral Nutrition5 Marks
Question
What is growth? What are its characteristics ?
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Answer

Growth : Growth is a “vital process which brings about an irreversible increase in an organism or its part with respect to its size, weight, form and volume.”

Characteristics of growth:

  1. Growth is a permanent increase in size, weight, shape, volume and dry weight of a plant.
  2. The change occurring due to growth is permanent and irreversible.
  3. Growth is an intrinsic process caused due to internal activities.
  4. Growth occurs by cell division and cell elongation followed by cell maturation which lead to the formation of different types of tissues.
  5. Growth in plants is mostly localized, i.e. restricted to some regions of plants possessing meristematic tissues or meris terns.
  6. Growth has a qualitative aspect where development takes place in an orderly manner and differentiation leads to higher and more complex state.

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