Plant Growth and Development Question 1

1. Typical growth curve in plants is : [2015 RS]

(a) Linear

(b) Stair-steps shaped

(c) Parabolic

(d) Sigmoid

Show Answer

Answer : d

Hints & Solutions

(d) Sigmoid growth curve maintains equilibrium with carrying capacity, it forms asymptote stage in plants. The rate of growth of a plant or plant part is not always the same during its life span. If we plot the increase in cell number (growth rate) against time, a typical $S$-shaped curve is obtained. This is called growth curve or sigmoid growth curve.



NCERT Chapter Video Solution

Dual Pane