Botany - Plant Growth and Development Question with Solution | TestHub
Read the following statements and find out the INCORRECT statement.
Plant growth is unique because plants retain the capacity for unlimited growth throughout their life.
Growth, at a cellular level, is principally a consequence of the increase in the amount of protoplasm.
One single maize root apical meristem can give rise to more than 3,50,000 new cells per hour, whereas cells in watermelon may increase in size by up to 17,500 times.
Environmental signals such as light, temperature and gravity also affect certain phases or stages of growth.
In geometric growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures.
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Solution:
In arithmetic growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures. In geometrical growth, the initial growth is slow (lag phase), and it increases rapidly thereafter – at an exponential rate (log or exponential phase). One single maize root apical mersitem can give rise to more than 17,500 new cells per hour, whereas cells in a watermelon may increase in size by up to 3,50,000 times.
