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Plant Growth and Development — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPlant Growth and Development5 Marks
Question
Raman's father while teaching him for his unit tests explained him that growth is regarded as the most fundamental and conspicuous characteristic of all living beings, but a piece of wood, when placed in water also increases in diameter. Raman got little confused about the growth process in plants.
  1. What is growth?
  2. Why do plants grow throughout their life? What term is given to this form of growth?
  3. Is plant growth measurable? State the parameters of growth measurement in plants.
  4. What value do you learn from the character of Raman's father?
✓

Answer

  1. Growth is defined as an irreversible increase in the weight or volume of a living structure over a period of time.
  2. Plants have meristems where the cells have the capacity to divide and self-perpetuate, called open form of growth.
  3. Plant growth is measured by variety of parameters, given below as:
  1. Fresh weight.
  2. Dry weitht.
  3. Length.
  4. Surface area.
  5. Volume.
  6. Cell number.
  1. Raman's father shows concern for his son's studies. He has the ability to clarify his doubts.

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