Plant Growth and Development Question 51

51. Auxetic growth is

[1994]

(a) increase in cell volume only

(b) increase in cell number only

(c) increase in fatty tissue

(d) increase in intercellular material

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Answer : a

Hints & Solutions

(a) Three types of growth are present in multicellular animals : (i) Auxetic growth: Increase in cell volume only, not in number. (ii) Multiplication growth : Increase in number, not in volume. (iii) Accretionary growth : Growth is due to mitotic division of some special type of cells occurring in specific locations of body.