Question

93 Which of the following statements regarding growth is
incorrect?
(a) In plants, growth by cell division is seen only upto a
certain stage.
(b) Growth exhibited by non-living objects is by
accumulation of material on the surface.
(c) A multicellular organism grows by cell division.
(d) Growth in in vitro culture of unicellular organisms can
be observed by counting the number of cells.​

Answer 1

Answer:

Growth is defined as the positive and irreversible change in size and mass over the period of time. Increase in mass and increase in the number of individuals are twin characteristics of growth. All multicellular organism grows by cell division. In animals, growth is seen only up to a certain stage only. Whereas, in plants, growth is continuous throughout the lifetime. Nonliving things show growth in the form of accumulation of material on the surface. For example, crystallization process. Growth in in-vitro culture can be calculated in the laboratory by counting the number of cells of unicellular organisms.

Thus, the correct answer is option B.

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